Should I change to the newly recommended 5W40 engine oil or continue to use the formerly recommended 5W30?
My 2014 Jeep GC 3.0L Turbodiesel has 112,000 miles on it. I've only used the recommended Pennzoil 5W30 Ultra Euro L for the life of the vehicle. Jeep just came out with a new recommendation of going to Rotella T6 5W40. Should I change to the 5W40 or stay with the 5W30 at this mileage? Or is it just not a big deal either way as long as I'm changing the oil on time?
If it is a Jeep recommendation and not some internet idiot oil expert use the latest recommended oil. I run the T6 in my Yamaha motorcycle and it is good oil. It is also reasonably priced at your local Walmart if you change your own oil as I do.
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