Are 3000 miles oil changes overkill using 5w20 or 5w30 Pennzoil Dino? I am anal about every 300o miles.
Quest said:There shall always be some folks who would just keeps going with 3K OCI no matter how well oil has become/what we told them to
IMHO 3K oci is only good for carb'ed engines in the 80s and early 90s and those days are long gone and past. Unless you have a seriously flaked up EFI system or severely modified (stroked, far from stock), otherwise, most situation typically calls for 5Kmiles OCI for general conventional oil, 7K for high % syn blend, or in the case of Gp4 or beyond, you may even be able to push it beyond 10k OCI.
So why fuzzing over that same ole 3K oci? Have you grow along with the technology or you falling behind?
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Q.
More like removing the lead from gasoline. The emission carbs were very precise.