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I use Mobil 1. I have no oil questions or issues. :) Way back in a previous lifetime (think 1970s) I worked for Mobil oil in a labratory setting and saw how good that oil was.

Thanks for the oil recommendation. That will make it easy. Yeah, this one is an automatic (my arthritis precludes a 5 speed in a Wrangler TJ) and very surprisingly has no rust. I've owned a 1999 and 2002 previously and well know the rust issues. I'm not an off roader (74 years old) and have...

I plan to purchase this Jeep on Sunday. 21 years old with 24,386 miles. Has no leaks at all presently. 4.0 litre straight six, OEM recommendation is 10W-30 in summer and 5W-30 in winter. Original owner was a UPS pilot that parked it at the airport and flew packages around the world. I've...

Yes it is.

I believe that as long as you go with an API SP oil in the correct 5W-30 grade and do 5,000 mile changes you'll be fine. I'll be using Mobil 1 ESP 5W-30 in my new CX-30 with the same motor because it's readily available in my area and priced the same as other premium oils.

I just picked up a 2006 Dodge Ram 1500 with the 5.7 L hemi. It has a Multi Displacement System - oil operated lifters to shut down 4 cylinders under light load. The book says you must use 5W20 oil to properly operate the lifter system. Anyone have any experience with this setup with GC? I'll...

We have several pump applications with gearboxes and bearing cases where the manufacturer specifies using non detergent oil. I can't get a straight answer as to why. Can anyone explain why this is recommended for these non combustion applications? Is it OK to use a detergent oil anyway? All of...