Quote:
Originally Posted by IDZRVIT
From the Z service manual:
"FOR NORTH AMERICA : Engine Oil Recommendation:
NISSAN recommends the use of an energy conserving oil in order to improve fuel economy.
Select only engine oils that meet the American Petroleum Institute (API) certification and International Lubricant
Standardization and Approval Committee (ILSAC) certification and SAE viscosity standard. These oils
have the API certification mark on the front of the container. Oils which do not have the specified quality label
should not be used as they could cause engine damage."
I highly doubt Nissan engineers would recommend a schedule 2 maintenance interval that would push the envelope under normal driving using dino oil.
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Sure they would. You'll long be out of warranty before the accelerated wear on your engine starts to matter.
It's just dumb to run cheap dino oil on a sports car anyway - try to argue that all you want, I doubt you'll have anybody agree with you.
I'll be sure to switch to Wal-Mart brand conventional next oil change and run it for 7500 miles. After all, Nissan says it
should be OK.