I want to reduce oil burning and clean both my piston oil rings and my piston oil holes without having to overhaul the engine.
I reviewed threads in the UOA and this forum, but did not see a discussion of the latest (SN) version of Pennzoil Ultra and Platinum.
Pennzoil's website didn't clarify the difference.
Looking at the oil container, both have 3 star ratings for engine wear and piston cleaning.
Besides about a $5 per 5 quart difference, is there any difference between them?
I reviewed threads in the UOA and this forum, but did not see a discussion of the latest (SN) version of Pennzoil Ultra and Platinum.
Pennzoil's website didn't clarify the difference.
Looking at the oil container, both have 3 star ratings for engine wear and piston cleaning.
Besides about a $5 per 5 quart difference, is there any difference between them?
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