Originally Posted by prjohnson View Post
Personally I change mine annually after a 1/2 interval break-in (change at 3K then the synthetic in/annually at/and every 6K) but, my 5-6K miles a year and easy drivin probably mean I over do it as well. But, this aligns with the JK's 6K intervals for other services per the OM. My "yard man" then uses the used oil in his old Ford pickup after me! (Penzoil Platinum or M1 are fine oils at a good price). I run a nice Pure One (again, great filter for the $6-7, why overpay for others...) filter and never worry. When have you seen a motor problem due to oil? Me: not since the mid 70's and the terrrible 10W-40's and some 10W-30's from teh era or straight weights used in very cold temps, plus then we had carbs and chokes, all dilutng the oil/cold/dry starts at high RPM's, oils that didn't flow, sheared and sludged...Oils and engines have changed, all for the better!
Originally Posted by BRICKTOP2 View Post
So is Jeep in business to make Junk that you are stupid enough to buy... and hopefully stupid enough to buy again and again? Or is it just possible that they are attempting to build a product and maybe even make a profit so they can stay in business. Don't forget that they have to meet thousands of safety standards + international regulations, CAFE standards, OSHA, not to mention build it with UAW labor! ... its amazing that they can actually still manufacture anything.
So go ahead and believe they intentionally want you to make it last 1 day past 50,000 miles because you are so stupid you'll just buy another one.
If you really believe this why do you own a Jeep?
One does not establish a dictatorship in order to safeguard a revolution; one makes a revolution in order to establish a dictatorship. - Orwell
Originally Posted by paul84043 View Post
As far as the manual.
Read your warranty coverage information.
If you do not do as the manual states or better they can and have denied warranty coverage.
Not just Chrysler, ALL manufacturers.
'09 Detonator Yellow 4dr Rubi, Bestop Element doors, Rugged Ridge XHD w/stinger, Warn 9.5ti, 3.5 Rock Krawler, Woods driveshafts, Hella 500 aux lights, 35x12.5x17 BFG KM2<< THEY SUCK
Originally Posted by jstrubberg View Post
I do 5K miles oil/filter change interval because it makes all of the other services line up nicely; it's also under the maximum of 6K specified in the manual. The 5.7L HEMI likes full synthetic better than dino oil (MDS performs better). However, I ran dealer dino oil and MOPAR oil filter for 30K miles during the break-in & 3/36 warranty period.
Although the synthetics probably last longer than dino oil before they breakdown, the particulate buildup, acid formation (condensation on short winter trips), and depletion of the oil's additive package are other influencing factors. With a 5K mile oil change target, I have some cushion if i can't do it "right-on-time".
As others have stated, today's oil formulations and additive packages are far superior to what they were in the 60's - 80"s. Any common sense maintenance regime you follow will be adequate.
Wish you the best with your Jeep & lotsa good miles.
HEMI CLUB MEMBER #45; SILVER WK CLUB MEMBER #13
'08 WK GC Limited. 5.7L HEMI. Quadra-Trac II. Bright Silver Metallic. Class IV hitch.
Michelin LTX M/S tires. Fumoto oil drain valve. Billet Technology oil catch can.
Originally Posted by armedsks View Post
It will not EVER hurt to change more frequently ...............
Prolonging failure is NEVER a waste .......... EVER !
All mechanical things WILL fail ...... when is the question .
Anything proactive you can do will increase the intervail of failure..............
Keep changing your oil ........... or don't ........... the one who does will go farther .............. no doubt !
07' Rubi Unlimited 6spd. , Rescue green #64 CDN , 35x12.5 mudders
Originally Posted by armedsks View Post
This what I ran into 3 weeks ago at work,120k on the engine and the guy ran 10k OCI's with Castrol Syntec and Fram oil filters.It's at the junkyard now,sold as scrape.
I changed my oil that day and it only had about 1500 miles on it after seeing that.
'02 Liberty sitting on 35" tires,HP44,RockJock60,and AtlasII t-case
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