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Topic Review (Newest First)
11-27-2014 10:17 AM
davidsbush Chrysler/Jeep dealer, (Mopar oil change special) 4 oil changes for $65. Free coffee while you wait. Add one can of Restore when I get home. 165k
11-27-2014 07:03 AM
Chuck59 I always ran Mobile 1, 10w30 in my 2004 Wrangler 4.0. I still use Mobile 1, 5w20 in my Lincoln and Silverado. But after replacing a worn out cam, and finding all my flat tappets were worn, and several clean thru, and 2 bent rods, in my beloved Jeep, I did some serious research.

My conclusion after months of research with experienced motor builders is that MY 2004 4.0 is going to get Brad Penn Green Oil 10w30 oil (it also has higher levels of ZDDP). I am going with them because of the superior way the Brad Penn (previously Kendall) oil remains bonded to the parts and pieces after shut down. It all just doesn't run back down into the oil pan, but remains stuck to all the internal parts. Remember that 90% of all engine wear occurs at start up. I change my oil at 3,000 mile intervals due to the ZDDP concentration deterioration.

I also use an oil filter with a back flow preventer / check valve such as Mobile 1, Mopar, NAPA Gold, or Wix.
09-18-2013 09:27 PM
jherrington 350,000 miles. Mobil 1 high mileage.
09-18-2013 09:11 PM
Finazzo007 I'm at 116,5xx and I run Castrol GTX 10W-30 with a Bosch filter. No problems over here.
09-18-2013 08:47 PM
Rivers 2003 Rubicon w/ 102,000....Syn Max-Life 10/30 works for me!
09-16-2013 10:28 AM
crallscars
oil pressure when hot and oil usage

I have 260,000 miles on my engine, I did a minor service at 90,000 with new main, rod bearings and a high volume oil pump. When I get off the highway I have an indicated 25 to 30 psi of oil pressure.

Until oil prices went thru the roof, I always changed my oil every 3000 miles with 30wt. I now change at 5000 and use 15/40 Rotella.

I currently use about 1 Qt of oil every 3000 miles.
09-15-2013 09:26 AM
flflash I've used Mobil 1 in all my vehicles since 1992 and change my oil and filters every 5000 miles, never had an oil related problem. Sure I pay more for oil and change it more often than some recommend but I'm happy with it.

BTW. Someone mentioned using the oil life monitor in their GM vehicle to calculate their oil changes sometimes 7000-12000 miles. GM currently is reprograming the PCMs in many models due to their findings of excessive wear, oil consumption and parts failure.
You might want to rethink your oil change strategy.
09-14-2013 10:25 PM
SeVeReDiStOrTiOn I've been running 10w-30 Rotella T-5 with a mopar/puralator filter without issues. Supposedly Rotella has high detergent/zinc content but I haven't sent a sample to black stone yet. Anyway, that's why I've been using it.
09-14-2013 09:50 PM
O19 Thanks guys, I'll stick with the 5w30.
09-14-2013 06:53 AM
HKSC01 I run 5W30 with a puralator filter... I live in SC and we are in the 90s on a daily basis.
09-14-2013 12:47 AM
lindel
Quote:
Originally Posted by O19 View Post
My recently acquired '04 Rubi, which now has 47,7xx miles has a maintenance sticker showing the next oil change at 49,8xx and that QS 5w30 was used. Is the 5 too low for temps in the mid-upper 90s of Okla summers? Even Oct temps can hit the low 90s.

5W30 will be fine. There's no reason that you couldn't switch back to 10W30 that the Owner's manual calls for, but 5W30 is fine.
09-14-2013 12:40 AM
doclouie
Quote:
Originally Posted by brs256 View Post
oil is oil .... 5w30 in the winter ( if the temp gets 30 degrees F and below) 10w30 in the summer

whatever is on sale .... change it often 3-4k sometimes 5k
I know oil is better today than in the past, but I had my oil analyzed when I was just using Quaker State and the report came back worse than I saw with standard Valvoline.
09-13-2013 11:09 PM
brs256 oil is oil .... 5w30 in the winter ( if the temp gets 30 degrees F and below) 10w30 in the summer

whatever is on sale .... change it often 3-4k sometimes 5k
09-13-2013 09:12 PM
doclouie My Jeep has 130,000 miles on the straight 6. I use to use conventional Valvoline 10w40 and after 3000 miles I got my oil analyzed and the results were not so good. I wanted to get 5000 between changes. I changed to Valvoline High Mileage and after 5000 miles I got it analyzed again and the results showed that I could even go farther, but I won't. The high mileage has some synthetic in it. I will say I had a small leak at the rear main seal for years and since I have been putting the High Mileage stuff in it has pretty much stopped the leak. Coincidence? Maybe but I am just glad I do not have to clean up the garage floor anymore.
09-13-2013 07:51 PM
Mctim35 I liked Valvoline on Facebook just so I could get the Wal Mart $5 off a 5 qt. jug coupon. I printed out a bunch of 'em. $13 for the regular old 10w-30 oil, and I bought a lot of 25 Fram oil filters on eBay for about $1.60 each from Summit. Maybe I'm nuts but I love a deal!
09-13-2013 06:22 PM
O19 My recently acquired '04 Rubi, which now has 47,7xx miles has a maintenance sticker showing the next oil change at 49,8xx and that QS 5w30 was used. Is the 5 too low for temps in the mid-upper 90s of Okla summers? Even Oct temps can hit the low 90s.
10-16-2012 09:34 AM
Wrangler2003
Quote:
Originally Posted by Blind Dog
Might be a higher HTHS viscosity on the HDEO. That is the viscosity characteristic of a motor oil that usually directly controls the hot engine oil pressure, not the "40 weight" part.
Just a guess why this would make your lifters quieter. Mine run quieter on thinner oil, so who knows...?
Each rig has their quirks. I got 188,000. Over heated twice, once when road debri punctured radiator it boiled dry and tripped the ASD relay. Perhaps in my case there might be excessive wear tolerances somewhere, but still going on original clutch even
10-16-2012 07:55 AM
Blind Dog
Quote:
Originally Posted by Wrangler2003 View Post
...Amount of detergents, amount of zinc, amount of something else that hasn't been beat to death in the threads?
Might be a higher HTHS viscosity on the HDEO. That is the viscosity characteristic of a motor oil that usually directly controls the hot engine oil pressure, not the "40 weight" part.
Just a guess why this would make your lifters quieter. Mine run quieter on thinner oil, so who knows...?
10-16-2012 06:01 AM
Wrangler2003
Quote:
Originally Posted by Jerry Bransford
Why would you choose an extra-heavy oil viscosity that is not factory recommended, is harder to pump, and is slower to reach all of the engine's points that need lubrication... especially when cold?

I may actually start using 5W-30 Valvoline instead of the 10W-30 I've been using for many years... its 5W weight when cold helps reduce the length of time the oil needs to reach all the nooks and crannies and it is during a cold start when the most wear occurs in an engine.
Why? Because I've tried just about everything else. The only difference between 15-40 and 10-40 is on startup once up to temp they are both acting as 40 weight. What I want to know is why does the HDEO seem to be helping? Amount of detergents, amount of zinc, amount of something else that hasn't been beat to death in the threads?
10-16-2012 05:57 AM
Wrangler2003 Well it may not be for everyone and is likely only delaying the inevitable. The thicker oil seems to help. My lifters were so bad, i was ready to pull the head and replace. I'd tried several different snake oils/mechanic in a bottle to no avail. I had a horrible ticking that would seem to fluctuate with the cycling of the thermostat (not sure of the correlation) and one or two that would collapse on occasion. I have a magnaflow muffler and at its worse it would sound like a Subaru WRX that thup thup thup sound. My mpg had gone to shit as well.
After putting in Rotella 15w-40, it's been almost two weeks I think. It's been a slow improvement but now no more collapses and thup thup thup. Mpg has came up, and the ticking has decreased
10-08-2012 09:08 PM
bandman Great information. Thank you very much. This is an awesome community!
10-08-2012 07:26 PM
Tdog02
Quote:
Originally Posted by bandman
Maybe I am opening a new can of worms... I just bought an 05 LJ with 90K and need to do the first oil change. On the OPDA thread on the other site there are some suggesting to use the Valvoline 10w-30 VR1 Conventional Racing Oil (funny, the bottle shown in the pic does not say "conventional"). Then there are 250 more pages to the thread. That's a bit of reading to wade through...
So, what are thoughts about a smart oil to keep your OPDA healthy?
That year also has the 6 speed manual. What is the best lube for that tranny?
They are looking at zinc content of oil, and yes that horse has been beaten to death. I think Jerry is right. Get something that will move quickly on start up and not strain the oil pump. Just my opinion, but 5-30 should be the oil for colder months. Higher mileage would be good to run year round. If you look at the zinc thing long enough, you will see a significant decrease in that level in modern oils. Just add a supplement like rislone and you will be fine.
10-08-2012 07:23 PM
Jerry Bransford
Quote:
Originally Posted by bandman View Post
Maybe I am opening a new can of worms... I just bought an 05 LJ with 90K and need to do the first oil change. On the OPDA thread on the other site there are some suggesting to use the Valvoline 10w-30 VR1 Conventional Racing Oil (funny, the bottle shown in the pic does not say "conventional"). Then there are 250 more pages to the thread. That's a bit of reading to wade through...
So, what are thoughts about a smart oil to keep your OPDA healthy?
That year also has the 6 speed manual. What is the best lube for that tranny?
Two good tranny lubes include Redline MTL and Royal Purple Synchromax.

So far as that OPDA thread goes, there are some zinc fanatics over there that just drive me crazy with their wild claims. To my way of thinking, you only need extra zinc if you're driving a modified engine with stiffer valve springs and higher lift cam that creates higher than normal tappet pressures. For a stock engine, I'll continue using standard plain-vanilla Valvoline (or Castrol, Shell, Mobil, Pennzoil, etc.) 10W-30... especially since none of us who have been running those engine oils for many years are having any engine failures.
10-08-2012 07:16 PM
Blind Dog My lifters are noisier with anything thicker than 10W-30. A neighbor friend of mine runs 5W-20 on his '99 TJ to keep the same noise down. Too thin for me for this engine.
Anyone know why they would clatter related to viscosity?
10-08-2012 07:14 PM
bandman Maybe I am opening a new can of worms... I just bought an 05 LJ with 90K and need to do the first oil change. On the OPDA thread on the other site there are some suggesting to use the Valvoline 10w-30 VR1 Conventional Racing Oil (funny, the bottle shown in the pic does not say "conventional"). Then there are 250 more pages to the thread. That's a bit of reading to wade through...
So, what are thoughts about a smart oil to keep your OPDA healthy?
That year also has the 6 speed manual. What is the best lube for that tranny?
10-08-2012 05:23 PM
ParaRigger I have been using Valvoline 10w30 since I bought it. Saw an ad at Autozone for 10w30 Valvoline NextGen Maxlife and went with it on my last change. For 25 dollars and some change I got the oil and the Purolater Pure one filter.
10-08-2012 05:15 PM
Jerry Bransford
Quote:
Originally Posted by Wrangler2003 View Post
Trying thick oil, changed oil today with rotella 15w-40.
Why would you choose an extra-heavy oil viscosity that is not factory recommended, is harder to pump, and is slower to reach all of the engine's points that need lubrication... especially when cold?

I may actually start using 5W-30 Valvoline instead of the 10W-30 I've been using for many years... its 5W weight when cold helps reduce the length of time the oil needs to reach all the nooks and crannies and it is during a cold start when the most wear occurs in an engine.
10-08-2012 05:04 PM
lknox12 I have 95,500 miles on my TJ 4.0 w/auto and use Valvoline 10w-30w and Valvoline oil filter and my pressure is just fine and the lifters do not make any noise. I believe in using what the OEM specs call for.
10-08-2012 04:26 PM
Wrangler2003 Trying thick oil, changed oil today with rotella 15w-40.
08-01-2012 11:40 AM
Blind Dog
Quote:
Originally Posted by Jiffydarren View Post
Aha! See I have a 2.5 which means I share it with approximately 3.6 quarts of oil. I bet the concentration is a bit higher for me. (With the additive it comes out to 4 quarts even).
Not that much, really.
If we round the ZDDP content of the STP up to 1200 ppm, and the oil you're using is 800 ppm, the total with the additive comes to about 846.1 ppm ZDDP by my calculations.
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