Castrol GTX
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#4
I don't know exactly what the "high mileage" motor oils are supposed to do, but I've been using Castrol Syntech since the 5000 mile oil change. Seems to run cooler with slightly better mileage. I also use a full synthetic gear lube in the rear diff. (the trans. fluid is already a synthetic.
#9
With modern day oils the base oils are pretty much all the same (in groups)
What is different is the additives and they are all so much better than even 10
years ago any oil is pretty much fine even the walmart crap. High mileage normally means its slightly thicker (still in grade) and has seal-conditioner
additives.
Translation its fine to use that.. better than some worse than others
more than sufficient for the application.
Rand
What is different is the additives and they are all so much better than even 10
years ago any oil is pretty much fine even the walmart crap. High mileage normally means its slightly thicker (still in grade) and has seal-conditioner
additives.
Translation its fine to use that.. better than some worse than others
more than sufficient for the application.
Rand
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