Quote:
Originally Posted by BrettKA7
5k changes do more good than harm, of course, but how do you feel about the blackstone lab reports that consistently seem to suggest 10k is fine?
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I was doing Blackstone analysis after every oil change. They were coming back fine after the initial (1200 miles oil change) analysis. My justification for 5000 miles oil changes is our cars have a turbo which is lubed and cooled by the engine oil. Turbos are hard on oil. Our engines rev at ~1200rpm for several seconds after each start to ensure that the turbo is getting enough oil at the required pressure.
When I was tracking him, I change the oil and filter after every 2 weekends.