Quote:
Originally Posted by olds455
Don't be discouraged by the worries of the thinner oils. Your car will have been replaced before that difference (if any) would show itself. My '95 Chevy 5.7 has 210,000 miles on it with 0w-20 iused in it since around 20k miles. My change intervals are 10k for a filter and 30k for everything. The truck doesn't use any oil between filter changes and has the probably never been driven without seeing full throttle. The truck will likely rust away before the engine dies....
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30k between oil changes! I thought I was crazy running mine to 12k.
Have you ever had an oil analysis done after a change? I'd be curious to know the viscosity, contaminate levels, and TBN. That kind of data would be a goldmine to the community since it is very rare to see people putting that many miles on between fluid changes.