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Topic Review (Newest First)
06-13-2014 06:07 PM
Pittsburghwrangler
Quote:
Originally Posted by mannyfresh View Post
Would you run premium gas in a Honda...?
https://www.google.com/webhp?sourcei...#q=honda%20nsx

depends on the honda
06-12-2014 11:24 PM
H3br3whamm3r81
Quote:
Originally Posted by lbrowning View Post
OK, so I plan to switch from M1 to a synthetic blend. Since it has both, it has to be right. Right?
Why bother asking? It's your Jeep. You do what you want.
06-12-2014 09:41 PM
lbrowning OK, so I plan to switch from M1 to a synthetic blend. Since it has both, it has to be right. Right?
06-12-2014 09:06 PM
DWDK
Quote:
Originally Posted by mannyfresh View Post
hence there is no plausible reason for you to change it that often... Conventional or otherwise. Why would anyone be opposed to saving money, saving time, and helping the environment all at no risk to your car? Would you run premium gas in a honda...?
x10
06-12-2014 08:59 PM
mannyfresh
Quote:
Originally Posted by curtmini14 View Post
its my money if i want to change my oil every 3000 so what mobil one does not brake down as fast as conv oil bottom line.
Hence there is no plausible reason for you to change it that often... Conventional or otherwise.

Why would anyone be opposed to saving money, saving time, and helping the environment all at no risk to your car? Would you run premium gas in a Honda...?
06-12-2014 08:56 PM
DWDK
Quote:
Originally Posted by 3X4X4 View Post
I was in the trade also, I do not work at Jiffy Lube, I make a whole lot more than $12.00 an hour but thanks for the insult. I have several degrees including Masters and plus 30 and I am an A&P and a master mechanic. A little of my handy work awaiting completion of the airframe (by me also), IO360, custom fuel injection, mostly built from Superior PMA parts and painted Viper yellow, also by me: Not everybody here is a teenager, just starting out, I have already finished most of my careers and as I said, I will stay with exactly what I said in my initial post in this thread. I accept you have an opinion, I have stated mine and will stay with it. J
I never said you made $12 but way to be uber sensitive and try and justify your opinion with outdated information. How long you been out of the trade? It's an ever evolving trade and technology that gets updated and changed almost yearly now, hence why a lot of "Mechanics" retire cause they can't keep up or just aren't smart enough too. Maybe not your case, but you did refer yourself as a Mechanic and Mechanics are parts changers around here. I would never let a mechanic fix my vehicle. I would only let a Technician fix my car because they actually know how it works . And your right not all of us are teenagers just starting out. You should sit down with my mentors, true technicians not mechanics that will tell you the same thing as I say did due to there 30+ years in the trade as well and they are still in the trade because they are able to keep up with technology and except it and not be stubborn and think what they learned 30 yrs ago still stands today. If you can't keep up this trade you get out of it, hence why there is such a huge demand for Techs around because all the ole boys couldn't cut it anymore. I've worked with plenty. Just my opinion
06-12-2014 08:36 PM
Jerry Bransford
Quote:
Originally Posted by curtmini14 View Post
its my money if i want to change my oil every 3000 so what mobil one does not brake down as fast as conv oil bottom line.
Walmart, Target, or 7-11 conventional engine oil wouldn't break down at 3,000 miles.
06-12-2014 07:35 PM
sccacorrado I use valvoline full synthetic in my 05' TJ. I Chang the oil every 10-12 thousand miles which usually ends up about 2-3 x a year. My jeeps oil always stays at the full mark on the dipstick so it burns no oil, and I drive the crap out of it here in the arizona desert 100 mile round trip to work 6 days a week. I think that if you use a full synthetic oil and drive your car almost every day for over 30 min at a time you will be fine changing the oil every 6-10 thousand miles.
06-12-2014 07:03 PM
curtmini14 its my money if i want to change my oil every 3000 so what mobil one does not brake down as fast as conv oil bottom line.
06-12-2014 01:05 PM
Dewcon4414 Even Jeep is trying to say change oil every 3000 in my manual..... yet the service manual says 6000 miles for conv. oil.... go figure. I knew an GM engineer who agreed.... every 3000 miles was wasting money, it just gave the service department more opportunities to find something needing repair. My manual.... has a lot of THINGS NEEDING DONE that isnt in the service manual i have.
06-11-2014 12:39 AM
Jerry Bransford I have a couple hundred hours behind that engine... never a hiccup... knock on wood.
06-10-2014 10:58 PM
3X4X4
Quote:
Originally Posted by DWDK View Post
His "opinion" is based on fact and I agree with him as I am in the trade. Like he said go read your manual or goto school and learn about oil lubrication and delivery systems and how they work, and when you come back with a Diploma saying you know more then the average person on that subject then you will see what we are talking about .

Who you going to believe? The loser at Jiffy Lube making $12 an hour that gives two shits about you or your car and just wants your service back ASAP because it makes his boss happier. Or are you going to believe the Engineers and Lawyers with thousands of dollars invested in education and the years of experience. That would not mislead you due to lawsuits. I think they know what they at talking about when they write manuals and service intervals
I was in the trade also, I do not work at Jiffy Lube, I make a whole lot more than $12.00 an hour but thanks for the insult. I have several degrees including Masters and plus 30 and I am an A&P and a master mechanic. A little of my handy work awaiting completion of the airframe (by me also), IO360, custom fuel injection, mostly built from Superior PMA parts and painted Viper yellow, also by me:



Not everybody here is a teenager, just starting out, I have already finished most of my careers and as I said, I will stay with exactly what I said in my initial post in this thread. I accept you have an opinion, I have stated mine and will stay with it.

J
06-10-2014 10:48 PM
H3br3whamm3r81
Quote:
Originally Posted by Free Bird View Post
]I did work for and was a mechanic for Fedex, 16 years. Fedex used conventional oil we got 250,000 miles out of our gas vehicles with 5k oil changes. If there was any value in synthetic oil I'm sure Fedex would have used it?
You're right; there is no value putting expensive synthetic engine oil in a fleet of FedEx delivery trucks. The engines in those trucks are not modified. A conventional engine oil can adequately protect them.

And to be honest, I don't think synthetic is any more beneficial than conventional when used in a naturally-aspirated, stock Jeep.

There are some naturally-aspirated vehicles that come from their factory with synthetic, but these are usually sports cars. The Jeep doesn't fit into that category.

Nevertheless, I'd still use synthetic because...heck, I have no valid reason. I'll be honest with you; I don't.

I think in a Jeep without engine modifications, both conventional and synethetic would offer the same protection.

Now if the Pentastar engine was turbocharged (which causes increased engine oil temperature) or was able to rev to 9000 rpm (which also increases the engine oil temperature due to friction), then yes, synthetic would be called for. But, 90% of Jeeps will not see that kind of engine performance.

Part of me still wants to use Mobil 1; to each his own. Habits are hard to break.
06-10-2014 09:45 PM
C.L.
Quote:
Originally Posted by Jerry Bransford View Post
Would anyone change their minds that synthetic was the next best thing to sliced bread if they learned that some items actually run significantly cooler when lubed with a conventional lubricant than with a synthetic?
It's all got its purpose. Synthetic in the engine and tranny to combat breakdown under combustion/shear conditions, conventional in the diffs to help cool the gears better. Synthetic in the blinker fluid reservoir to make the clicker go faster...
06-07-2014 02:13 PM
Sinister6 Ok, gentlemen if this thread turns into a pissing match it will be closed! Agree to disagree and state your opinions without personal attacks!
06-07-2014 01:43 PM
DWDK His "opinion" is based on fact and I agree with him as I am in the trade. Like he said go read your manual or goto school and learn about oil lubrication and delivery systems and how they work, and when you come back with a Diploma saying you know more then the average person on that subject then you will see what we are talking about .

Who you going to believe? The loser at Jiffy Lube making $12 an hour that gives two shits about you or your car and just wants your service back ASAP because it makes his boss happier. Or are you going to believe the Engineers and Lawyers with thousands of dollars invested in education and the years of experience. That would not mislead you due to lawsuits. I think they know what they at talking about when they write manuals and service intervals
06-07-2014 01:27 PM
3X4X4
Quote:
Originally Posted by mannyfresh View Post
If you are changing your oil at less than 7,500 miles, there is no reason to buy synthetic. It's just a waste. I mean whatever floats your boat, but if you're changing at 3,000 miles you are simply changing too often. The manual of your jeep lists that basically unless you're driving in a desert every day at 90+ degrees and going on constantly short trips, you should change your oil at 7,500 miles. And that is with conventional oil.

The 3,000 mile oil change is a myth invented to make you waste money. If you want to know when to change your oil, check your manual. Don't pay attention to what the jiffy lube station says. They just want you to keep coming back...

That is your anecdotal based opinion. I accept you have an opinion and I have given mine.

J
06-07-2014 12:17 PM
mannyfresh
Quote:
Originally Posted by 3X4X4 View Post
I do not think synthetics are the end all and be all of oils. If you are doing a short change interval, 3,000 miles, then a good, quality, name brand conventional or semi-syn oil is fine. If you are running 5,000 to 7,500 or more on a cycle then I would want a synthetic.

That said, I have been using Mobil 1 synthetic products since they came out back about 79 and I have accumulated significant mileage on several vehicles with it and as well I have been privy to some oil testing back long ago. I would be comfortable with any name brand product, conventional or synthetic, just consider your use and change intervals and you will be fine.

J
If you are changing your oil at less than 7,500 miles, there is no reason to buy synthetic. It's just a waste. I mean whatever floats your boat, but if you're changing at 3,000 miles you are simply changing too often. The manual of your jeep lists that basically unless you're driving in a desert every day at 90+ degrees and going on constantly short trips, you should change your oil at 7,500 miles. And that is with conventional oil.

The 3,000 mile oil change is a myth invented to make you waste money. If you want to know when to change your oil, check your manual. Don't pay attention to what the jiffy lube station says. They just want you to keep coming back...
06-07-2014 11:49 AM
3X4X4 I do not think synthetics are the end all and be all of oils. If you are doing a short change interval, 3,000 miles, then a good, quality, name brand conventional or semi-syn oil is fine. If you are running 5,000 to 7,500 or more on a cycle then I would want a synthetic.

That said, I have been using Mobil 1 synthetic products since they came out back about 79 and I have accumulated significant mileage on several vehicles with it and as well I have been privy to some oil testing back long ago. I would be comfortable with any name brand product, conventional or synthetic, just consider your use and change intervals and you will be fine.

J
06-07-2014 07:39 AM
MarkGLHS The main reason I don't use Mobil One is because I only put 2,000 miles/year on my TJ, meaning one oil change per year....I'd be wasting a lot of money dumping Mobil One out of the engine after only 2,000 miles.

Besides, the 4.0L engine is so well designed and manufactured, and is so under-stressed compared to the more high performance engine types (say for example Chevy's LS6 engine or my 5.7L Hemi in my GC) , that synthetic oil is really not necessary to achieve very long and reliable engine life.

.......but to each his own.
06-07-2014 06:33 AM
Muddeprived
Quote:
Originally Posted by Jerry Bransford View Post
The filter can't tell the difference between synthetic and conventional oil. The Purolator PureOne oil filter will be fine.

Folks, there is not a significant difference between synthetic and conventional lubricants, it's not like they aren't essentially the same thing.
Hey Jerry I heard some bad news about Purolater Filters but not sure which ones. Something about how the filter material deteriorates or something. I can't remember exactly but was recent. You know anything about it? I always ran Purolator Classic filters until I read the news about them not being as great as they used to be. I know it's a little off topic but....
06-06-2014 09:43 PM
SolarColumbia Correct me if I am wrong, but I've always heard that the type of driving one does has a lot to do with engine longevity. Vehicles that get up to full operating temp and stay there for a while tend to last longer than ones that cover short distances, idle a lot in traffic, etc. In the second scenario synthetic oil and frequent changes might be more of a necessity.
06-06-2014 07:28 PM
Jerry Bransford The filter can't tell the difference between synthetic and conventional oil. The Purolator PureOne oil filter will be fine.

Folks, there is not a significant difference between synthetic and conventional lubricants, it's not like they aren't essentially the same thing.
06-06-2014 07:18 PM
Brit Nick Just bought 5 qts of M1 synthetic. Do I need a synthetic filter too ? I got a purolator. Will that be ok ?
06-06-2014 10:14 AM
Pittsburghwrangler
Quote:
Originally Posted by Jerry Bransford View Post
Would anyone change their minds that synthetic was the next best thing to sliced bread if they learned that some items actually run significantly cooler when lubed with a conventional lubricant than with a synthetic?
Who eats sliced bread? Yuck lol jk
I'm not so much worried about temperature as I am about how clean it gets and keeps the engine. I know that in the past my jeep has not always been taken very good care of. When I got the jeep (from my own parents none the less) and changed the oil for the first time there was a significant amount of sludiness to the ink black oil. Poor Jeepie

Edit: this was a while ago and everything has been running pretty smoothly since but after that first change I've been worried about what the inside of this engine might look like
06-06-2014 09:57 AM
Jerry Bransford Would anyone change their minds that synthetic was the next best thing to sliced bread if they learned that some items actually run significantly cooler when lubed with a conventional lubricant than with a synthetic?
06-06-2014 09:44 AM
Muddeprived If you decide to switch to synthetic at that mileage, make sure you do the following BEFORE the switch:

change oil pan gasket
change valve cover gasket
change rear main seal

I changed mine to synthetic (1999 TJ 2.5) at 82k and ALL of those started leaking before the next oil change was due. Bleh.......

It doesn't run any better or worse, it doesn't have any more or less power, it smells the same, and still does not fix itself so I think it's not worth switching.
06-06-2014 09:05 AM
HARLEYDAWG01 Synthetic is the way to go. Jerry is right about conventional oils being better than ever. But in my experience synthetic is better. It does not break done as fast. It handles heat better and the viscosity is superior. Can you put 300,000 on your engine with conventional oil? Of course you can. Regular maintenance and treating your engine right goes a long way. All my vehicles deserve synthetic and that's what they get.
06-06-2014 08:24 AM
Evpjr It only stands to reason that there are different wear and heat, patterns between lubricated parts when different lubricants are used. Just plain water is the best lubricant there is but if you use it, and then go to oil or synth, problems arise. Go figure! :-(
06-06-2014 07:28 AM
C.L.
Quote:
Originally Posted by Jerry Bransford View Post
I bet I could sneak in at night, switch all your Amsoil lubes to Castrol, Valvoline, Mobil, etc, and you never notice the difference afterward.
I bet you couldn't; my spidey sense starts tingling when someone's near my Jeep.
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