Hey guys. Simple question: Should I/ Can I run Delvac 1300 Super 15W-40 in 2011 Jeep Liberty 3.7L Backstory: Jeep suggests Pennzoil 5w-30. But i have 76xxx+ miles on it so heavier weight would be okay/better for it. I have 01 Cummins that i run Delvac in and also just picked up 05 Passat TDI that im going to use Delvac for. So i was hoping i could use same oil in Jeep so i can just buy it in bulk and save some money. I've read on internet that people run Delvac in older jeeps 4.0, so it must be true What do you guys think about Using Delvac 1300 in newer (ish) jeep?
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