cbr600rr
Go Kart Champion
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- Ottawa, Canada
change oil after break-in
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Thats what I did but the manual for our cars doesn't support that opinion unfortunately. Is there stance of 10,000mi intervals driven by ecological concerns(EPA) or R&D results? Thats why this thread exists. The manual is in direct conflict with "traditional" rules of thumb. I've spoken with engineers at companies supplying motorsports and automotive industry(NASCAR etc., OEMs, Autozone and O'reilly's) when I was debating switching oil and grade from Castrol 0W-20, or deviating from manufacturers oil change interval. They conveyed to me a tremendous amount of effort and money goes into selecting oil type and grade and their recommendations for change intervals. Again, I changed mine after break in, will run reduced change intervals and am likely to switch to a different brand and weight. Why I think I know better than the engineers at VAG, I have no idea.change oil after break-in
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It's driven by repeated data that support that for "normal" driving by "normal" people, the oil with the appropriate approvals has sufficient additive and viscosity to go 10K miles without causing excessive wear etc. That's really it. If you believe the data, great. If not, ok? Folks are so hung up on this and the old-school notion of 3K mile oil change mantra that they can't ever get past it is my take. Look at my 9K oil change interval...that included drag racing at a local track and hammering my car with launches, >100mph highway runs, etc. It looks fine. I can guarantee the engine will fail at some point but not b/c of my oil change interval choice. I always laugh when folks post up UOAs with ~3K miles on it and say "Wow...look at how good it looks!" b/c...of course it looks good...any modern oil will look good at such a low mileage.Thats what I did but the manual for our cars doesn't support that opinion unfortunately. Is there stance of 10,000mi intervals driven by ecological concerns(EPA) or R&D results? Thats why this thread exists. The manual is in direct conflict with "traditional" rules of thumb. I've spoken with engineers at companies supplying motorsports and automotive industry(NASCAR etc., OEMs, Autozone and O'reilly's) when I was debating switching oil and grade from Castrol 0W-20, or deviating from manufacturers oil change interval. They conveyed to me a tremendous amount of effort and money goes into selecting oil type and grade and their recommendations for change intervals. Again, I changed mine after break in, will run reduced change intervals and am likely to switch to a different brand and weight. Why I think I know better than the engineers at VAG, I have no idea.
It's driven by repeated data that support that for "normal" driving by "normal" people, the oil with the appropriate approvals has sufficient additive and viscosity to go 10K miles without causing excessive wear etc. That's really it. If you believe the data, great. If not, ok? Folks are so hung up on this and the old-school notion of 3K mile oil change mantra that they can't ever get past it is my take. Look at my 9K oil change interval...that included drag racing at a local track and hammering my car with launches, >100mnph highway runs, etc. It looks fine. I can guarantee the engine will fail at some point but not b/c of my oil change interval choice. I always laugh when folks post up UOAs with ~3K miles on it and say "Wow...look at how good it looks!" b/c...of course it looks good...any modern oil will look good at such a low mileage.
That's just it - high-quality/high-additive pack synthetic/blend oils. The oils back in the '60s-70s were just not up to task compared to what we have today. Also the notion of break-in oils/periods and "metal shavings" in your oil. Big difference between today's engine production and those from that that era. Sure, you get some metal wear but it's captured by the filter - that's the point of it...these bits don't just keep recirculating through your engine. Also, if the concern is that, I'd say changing the oil every few 00 miles would be needed with testing to determine when all the metals are gone and you can stop the short interval changes - otherwise, even with say a 1500 mile initial change, you still "recirculated the metal shavings" for 1500 miles so how does that work if the goal is to remove it. It's all ritualistic and not really based on anything more than folklore.BMW switched to synthetic long-life oil and 15K intervals 2 decades ago, and in the time I worked at the dealership, we never saw a single engine issue that could be the result of the extended drain intervals. The engines just kept on running smoothly, long after every other component on the cars had failed twice over.
It's all ritualistic and not really based on anything more than folklore.
That describes so many things that people do, and reason why our species hasn't progressed further than it has.
Tradition is just peer pressure from dead people.