scottedontknow
Well-Known Member
- Thread starter
- #1
Okay so hear me out, I accidently did the past oil change on both my and my wife's JLU Sport S with Pennzoil platinum. I didn't really notice any different performance wise but....... my wife got new wheels/tires (32", on Sahara wheels), and I upgraded to 33" on Rubicon wheels. my MPG went DOWNNNNNNN like a lot from 22ish down to 15-16. I realized that when I ordered my oil last (I buy it in bulk) I was sent the platinum instead of the ultra platinum. I just did oil changes on both and MPG is now up to 19-20 (I only do city) and my wife is up to 26 (she does highway mostly). It is really possible that oil can make THAT much of a difference? We both fill up at the same gas station using the same 91 every time, nothing else has been done/changed that would cause a change in MPG that I can think of. Has anyone else noticed this?
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