Why Synthetic Oil? - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 10-13-2011, 11:59 AM   #1
Jeeper
 
mrmzchiefus's Avatar
 
Join Date: Jul 2010
Posts: 28
Why Synthetic Oil?

Why is everyone using synthetic oil? Better fuel mileage? Better engine Life? Better overall performance? If yes how do you know? Do you notice the difference or just read that there is a difference? I'm interested in the facts.

mrmzchiefus is offline   Quote Quick Reply
Old 10-13-2011, 12:23 PM   #2
Jeeper
 
DrCloud's Avatar
 
Join Date: Oct 2011
Posts: 49

DrCloud is offline   Quote Quick Reply
Old 10-13-2011, 12:36 PM   #3
Jeeper
 
OregonTJ's Avatar
 
Join Date: Sep 2010
Location: Willamette Valley
Posts: 778
I'm not...never have in 40 years, never will........
__________________
2005 Wrangler Sport, I6, Auto
17" Incubus Poltergeist Wheels
Cooper LT 265/70/R17 Discoverer SST 32"
RC 3.25" Suspension Lift
AFTB

OregonTJ is offline   Quote Quick Reply
Old 10-13-2011, 12:50 PM   #4
Hardcore Jeeper
 
Peepers's Avatar
 
Join Date: Oct 2010
Location: Windsor, CT
Posts: 3,320
I recently switched to amsoil from dino. I could tell a difference from the second I started pouring. Dino on a 70 degree day pours like maple syrup. Amsoil pours like water. That means when the temperature get colder (in new england we get a lot of days below freezing) the amsoil will be more fluidy at colder temperatures. This means when you start your engine in the cold the oil will flow to the critical components faster. Aka less wear. Also this is like one of those seat of your pants dyno reviews, but the engine seems to run smoother with amsoil in it. you cant describe it, but you know your vehicle and you know when something is running right or wrong.

My dad was a royal purple guy and switched to amsoil once because I ordered it and then found something wrong so I couldn't do the oil change (aka he got a free oil change). Even he noticed a difference. If you can afford it I would say its worth a try. If you don't like it go back to regular oil.
__________________
What have we got?
We have one heavily armed Recreational Vehicle


ΣΧ
The Power Tech 6
Peepers is offline   Quote Quick Reply
Old 10-13-2011, 12:52 PM   #5
MTH
Jeeper
 
MTH's Avatar
 
Join Date: Oct 2010
Location: North Carolina
Posts: 8,553
Quote:
Originally Posted by mrmzchiefus View Post
Why is everyone using synthetic oil? Better fuel mileage? Better engine Life? Better overall performance? If yes how do you know? Do you notice the difference or just read that there is a difference? I'm interested in the facts.
My understanding is that it lasts longer and is overall better for the engine, as it can in effect be chemically more "perfect" and more resistant to degradation and temperature than natural oil.

How do I know? It's what I've read. Like most things in life, you make your decision based on information you gather from sources you deem reasonably trustworthy. I don't have the time or inclination to seek out professional oil testing and don't have any special educational or professional background that would be relevant to the issue.

Incidentally, by looking for synthetic on sale and changing my own oil, I'd expect I don't spend any more than most folks do at Jiffy Lube for dino oil.

Whether it's going to add life to my engine or not, I have no idea. I can say I'm pretty confident I'll never regret using synthetic though.
__________________
Mike
2010 JKU "Mountain" Edition
TeraFlex 2.5" Coil Lift : Old Man Emu Nitrocharger Shocks : 33x12.5R15 Goodyear DuraTracs : 15x8 Black Rock 909s : Other Stuff . . .
MTH is offline   Quote Quick Reply
Old 10-13-2011, 02:43 PM   #6
Official WF thread de-railer
 
Mr. Sinister's Avatar
 
Join Date: Jul 2010
Location: Fair Hill, Maryland
Posts: 3,706
I'll just copy and paste my response to this from another thread, and highlight the important parts for your convenience:

Synthetic is just plain better, in pretty much every automotive application.

If you want the scientific explanation, I can give it to you:
The molecules in synthetic oil are much more uniform in size and shape, making synthetic oil much more resistant to breaking down in extreme temperatures. Synthetic also has a greater shear strength, meaning is doesn't break down as easily as conventional oil does when pressure and shearing forces are applied to it.
Synthetic oil is also chemically produced, so there is virtually NO contaminants, unlike conventional that will contain trace amounts of sulfur, wax, and asphaltic material. Because of synthetic oil's superior flow characteristics, you can also free up a few horsepower at the same viscosity level as conventional oil since resistance on the crank and in the oil pump is lowered (same for synthetic trans fluid and gear oil).

Do you NEED Synthetic? No, you can have a perfectly happy, long lasting engine with conventional motor oil. But, synthetic oil has been scientifically proven to be better at everything motor oil is designed to do, and that's worth the extra money to me. I run synthetic in everything I own.
__________________
SO MUCH EXCITE!
Mr. Sinister is offline   Quote Quick Reply
Old 10-13-2011, 03:38 PM   #7
Jeeper
 
Join Date: Jul 2011
Location: Broken Arrow, OK
Posts: 2,305
I agree with Mr. Sinister. My DD has never seen a drop of synthetic oil and will roll past 400k miles by the end of the year. However, I have to change the oil every 3000 miles and I would go broke doing that with synthetic. Many will tell you that synthetic is better because you can go longer between oil changes, but that is a lousy reason. The best reason to use synthetic is because it's better for your engine that dinosaur juice because of reasons cited above.
__________________
2012 Silver Sport S, Silver, 6 speed, soft top, 3.73s, LSD, PCG, Infiniti, deep tint windows, Pro Comp 1028 wheels, 33" Duratracs, Smittybilt bumpers and steps, KC fog lights, Mopar slush mats and fuel door.

Happiness is a belt fed weapon.
oilwell1415 is offline   Quote Quick Reply
Old 10-13-2011, 04:38 PM   #8
Jeeper

WF Supporting Member
 
willee51's Avatar
 
Join Date: Sep 2011
Location: PEOPLES REPUBLIC of Forest, VA
Posts: 1,132
Angry

Quote:
Originally Posted by DrCloud View Post
__________________
2012 (on the road again)
willee51 is offline   Quote Quick Reply
Old 10-13-2011, 05:04 PM   #9
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
Quote:
Originally Posted by willee51

Enough popcorn for you buddy
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 05:16 PM   #10
Jeeper
 
DrCloud's Avatar
 
Join Date: Oct 2011
Posts: 49
Quote:
Originally Posted by willee51 View Post
Every car forum I've ever browsed or joined (at least a dozen that I can remember) has this discussion. Over and over and over and over...

This is my first view of it here, so I'm interested in how strange it gets. HPH
DrCloud is offline   Quote Quick Reply
Old 10-13-2011, 05:25 PM   #11
Jeeper
 
jk wrangler fan's Avatar
 
Join Date: Feb 2011
Location: Chicago
Posts: 160
I noticed over a 1 mpg increase in fuel economy when I switched to synthetic motor oil in my Wrangler.

When I used to use it for engine performance/racing applications in past vehicles, there were other benefits observed as well.
jk wrangler fan is offline   Quote Quick Reply
Old 10-13-2011, 06:30 PM   #12
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
Quote:
Originally Posted by DrCloud
Every car forum I've ever browsed or joined (at least a dozen that I can remember) has this discussion. Over and over and over and over...

This is my first view of it here, so I'm interested in how strange it gets. HPH
Yep

But anyhow, I've only had my 07 for 3 months. Dealer fresh oil at 35,000.
36,000 I replaced with Amsoil 5W-20, really did not notice any difference--engine feel or MPG's, maybe with an older engine with more miles.
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 07:02 PM   #13
Jeeper
 
ronrad's Avatar
 
Join Date: Oct 2011
Posts: 247
I have been using synthetic in all my cars and motorcycles since I was racing motorcycles. The most obvious difference that sold me was that the synchros worked way better on all the gear shifts on the bikes. (way less resistance to the shift lever and much smoother shifts, that is completely noticeable in the lever effort / pressure) Anything that makes any mechanical pieces come together work with less effort sounds like a good thing for the engine as a whole to me.
ronrad is offline   Quote Quick Reply
Old 10-13-2011, 07:19 PM   #14
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Here's a reason that for me, supersedes all others...

A good amount of engine wear/tear is caused at (cold) start-up. (Some say as much as 90%).
Dino oil thickens overnight, and needs to *warm up* before it lubes at full power...
Synthetic oil does NOT thicken overnight...
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 10-13-2011, 07:29 PM   #15
Member
 
Join Date: Dec 2010
Posts: 764
Synthetic oil is made from crude oil, just a different process then so called dino oil. Corvettes and Cadies all come from the factory with mobil one, so what more do you need to know.
KSCRUDE is offline   Quote Quick Reply
Old 10-13-2011, 07:38 PM   #16
Jeeper
 
rjk5828's Avatar
 
Join Date: Jul 2011
Location: Chicago
Posts: 134
Images: 4
Question If you love your Jeep?

I have never used the synthetic oil before, but I have about 3900 miles on my new jeep. I was going to change the oil tomorrow, should I try the Amsoil? I am planning on keeping this jeep for a very very long time.
rjk5828 is offline   Quote Quick Reply
Old 10-13-2011, 07:57 PM   #17
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
Quote:
Originally Posted by rjk5828
I have never used the synthetic oil before, but I have about 3900 miles on my new jeep. I was going to change the oil tomorrow, should I try the Amsoil? I am planning on keeping this jeep for a very very long time.
Amsoil is expensive. There was a study on the internet on different oils. Mobile 1 and Amsoil were close to each other.
I use it and still follow normal change intervals.

Sup to you
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 08:03 PM   #18
MTH
Jeeper
 
MTH's Avatar
 
Join Date: Oct 2010
Location: North Carolina
Posts: 8,553
Quote:
Originally Posted by rjk5828
I have never used the synthetic oil before, but I have about 3900 miles on my new jeep. I was going to change the oil tomorrow, should I try the Amsoil? I am planning on keeping this jeep for a very very long time.
M'eh, the fact that you're vigilant and change your oil when needed is what's really important. Plenty of folks go really far on dino.

If it means anything to you, I use Mobil 1 Extended Performance (full synth) and it's corresponding filter. They claim it's good for 15k miles, though I change it whenever my Jeep *dings* for a change, which is about every 5k miles. The Jeep's computer assumes you're using dino oil, so I figure this is going a little "above and beyond" without being crazy.

Is it the "best" for my engine? I have no idea. 20k miles and no problems.
__________________
Mike
2010 JKU "Mountain" Edition
TeraFlex 2.5" Coil Lift : Old Man Emu Nitrocharger Shocks : 33x12.5R15 Goodyear DuraTracs : 15x8 Black Rock 909s : Other Stuff . . .
MTH is offline   Quote Quick Reply
Old 10-13-2011, 08:28 PM   #19
Jeeper
 
Join Date: Jul 2011
Location: Broken Arrow, OK
Posts: 2,305
Quote:
Originally Posted by kjeeper10 View Post
Amsoil is expensive. There was a study on the internet on different oils. Mobile 1 and Amsoil were close to each other.
I use it and still follow normal change intervals.

Sup to you
Mobil 1 5w30 at Walmart: $6.47/qt
Amsoil 5w30 from a local business: $6.10/qt

$6.10 isn't my price, it's MSRP.
__________________
2012 Silver Sport S, Silver, 6 speed, soft top, 3.73s, LSD, PCG, Infiniti, deep tint windows, Pro Comp 1028 wheels, 33" Duratracs, Smittybilt bumpers and steps, KC fog lights, Mopar slush mats and fuel door.

Happiness is a belt fed weapon.
oilwell1415 is offline   Quote Quick Reply
Old 10-13-2011, 08:34 PM   #20
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,914
I get my Mobile one in Nevada, at Walmart and they have 5qt bulk containers, 5w-30 for $23.99--

I'm several "bulks" ahead !

JIMBO

Just checked now it's up to $27 or $30, I got mine 1˝ years ago-
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 10-13-2011, 08:35 PM   #21
Jeeper
 
Join Date: Sep 2011
Posts: 38
In my opinion, Amsoil is nothing but crap snake oil. Mobil 1 used to be true synthetic, but many now claim it has some dino in it. Skip those two and get a true synthetic.
HaulP is offline   Quote Quick Reply
Old 10-13-2011, 08:39 PM   #22
Jeeper
 
Join Date: Sep 2011
Location: Gunnison, CO
Posts: 37
Switching to Mobil 1 in my Harley lowered the engine temp by about 10 degrees. Since it's air cooled this has got to be from less friction. I'm using it in everything I own now.
sstan is offline   Quote Quick Reply
Old 10-13-2011, 08:45 PM   #23
Member
 
Join Date: Dec 2010
Posts: 764
Quote:
Originally Posted by oilwell1415 View Post
Mobil 1 5w30 at Walmart: $6.47/qt
Amsoil 5w30 from a local business: $6.10/qt

$6.10 isn't my price, it's MSRP.
Doesn't the old mini van maytag 3.8 use 5-20 or so I thought. Don't know about the Jesus mini van motor as I don't have one.
KSCRUDE is offline   Quote Quick Reply
Old 10-13-2011, 09:04 PM   #24
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
Quote:
Originally Posted by KSCRUDE
Doesn't the old mini van maytag 3.8 use 5-20 or so I thought. Don't know about the Jesus mini van motor as I don't have one.
Little thicker--I see used a lot, more so with the oil drinkers.
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 09:05 PM   #25
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
Quote:
Originally Posted by HaulP
In my opinion, Amsoil is nothing but crap snake oil. Mobil 1 used to be true synthetic, but many now claim it has some dino in it. Skip those two and get a true synthetic.
And that would be?
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 09:11 PM   #26
Jeeper
 
Join Date: Jul 2011
Location: Broken Arrow, OK
Posts: 2,305
Quote:
Originally Posted by HaulP View Post
In my opinion, Amsoil is nothing but crap snake oil. Mobil 1 used to be true synthetic, but many now claim it has some dino in it. Skip those two and get a true synthetic.
Quote:
Originally Posted by JIMBOX View Post
I get my Mobile one in Nevada, at Walmart and they have 5qt bulk containers, 5w-30 for $23.99--

I'm several "bulks" ahead !

JIMBO

Just checked now it's up to $27 or $30, I got mine 1˝ years ago-
The Amsoil bulk oil is about the same. Some of it jumps from quarts to 30 gallon drums though. The high end stuff comes in gallon jugs, but the more mainstream products go straight to the drums. I'm not much of a fan of gallon jugs anyway.

Quote:
Originally Posted by HaulP View Post
In my opinion, Amsoil is nothing but crap snake oil. Mobil 1 used to be true synthetic, but many now claim it has some dino in it. Skip those two and get a true synthetic.
And you base this opinion on what evidence? Or is it just a gut feeling you have?

FYI, there is no such thing as a "true" synthetic. They all have some conventional base stock in them. My biggest issue with Mobil 1 was that it was about $3/qt when all other synthetics were twice that much. The only way they could have pulled that off is to cut corners somewhere.

Quote:
Originally Posted by KSCRUDE View Post
Doesn't the old mini van maytag 3.8 use 5-20 or so I thought. Don't know about the Jesus mini van motor as I don't have one.
The 3.8 does take 5w20, the 3.6 is 5w30. The prices are the same.
__________________
2012 Silver Sport S, Silver, 6 speed, soft top, 3.73s, LSD, PCG, Infiniti, deep tint windows, Pro Comp 1028 wheels, 33" Duratracs, Smittybilt bumpers and steps, KC fog lights, Mopar slush mats and fuel door.

Happiness is a belt fed weapon.
oilwell1415 is offline   Quote Quick Reply
Old 10-13-2011, 09:12 PM   #27
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,914
Say, ol CRUDE one-


Quote:
Originally Posted by KSCRUDE View Post
Doesn't the old mini van maytag 3.8 use 5-20 or so I thought. Don't know about the Jesus mini van motor as I don't have one.
Do you get as much Freudian "tingle" outta saying "HEMI" or "KEVLAR" as you do by

"minivan"-

Tellus, what weight oil do you use in your 3.8L/3.6L ??

--JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 10-13-2011, 09:21 PM   #28
Jeeper
 
Join Date: Sep 2011
Posts: 38
Suckers born every minute

HaulP is offline   Quote Quick Reply
Old 10-13-2011, 09:22 PM   #29
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,308
He's Hungary--don't feed em
__________________
2007 Rubicon/Rock Krawler triple rate 2.5" coils/RK rear TB w/ a teraflex raised bracket/Rancho 9000 31/32XL shocks/Synergy flipped draglink,ball joints,tie rod /Hankook MT 315-75-16 on Level 8 ZX's/Rancho geo brackets/Ruff stuff uppers/Fox ATS stabilizer/Adams front DS/Artec front armor w/ Currie upper bushings/Rancho cat back exhaust.

Lifting your JK? Read this!!



Click HERE to become a WranglerForum Supporting Member!
kjeeper10 is offline   Quote Quick Reply
Old 10-13-2011, 09:27 PM   #30
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,914
Heh Heh, kj-I think we're right at the edge of censorship !

JIMBO

__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Synthetic Drivetrain Fluids J_Westy JK General Discussion Forum 10 08-29-2013 08:45 PM
Rugged Ridge WINCH SALE 8500 & 10500 Cable and Synthetic with Warranty Baseline 4x4 Outfitters Vendor Spotlight! Great Deals for Members. 27 03-13-2013 09:22 PM
oil pressure variation after full synthetic switch 2000TJ. TJ General Discussion Forum 1 03-11-2011 04:25 PM
Synthetic Oil Worth it? AggieChris TJ Tech Forum 16 07-20-2010 10:32 AM
engine oil? Giancarlo TJ Tech Forum 10 09-08-2009 12:51 PM



» Featured Product

All times are GMT -5. The time now is 02:46 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC