mts Posted May 16, 2006 Report Share Posted May 16, 2006 Royal Purple Redline Royal Purple & Red Line Oil sites both warn against against using race-optimized oils in a street car. These statements are almost hidden in-the-weeds, buried by useless propaganda. I already pasted such statements into other race oil threads and rehash is hardly necessary. "Although Red Line racing oils are categorized as "straight grades", their low-temperature properties make them exceptional multigrades, allowing 2-4% more power than an oil of similar viscosity, while providing much more protection. Each reduction in viscosity grade allows 1-2% more power. To reduce the chance of detonation, our race oils contain very few detergents and are not recommended for street use." quoted from Redline site.... so stick to street grades. Optimal race additive packages are totally different than extended interval street additive packages. Race lubes are blended for max power and good performance in the short haul. Street lubes are blended for consistent performance and minimum wear over the long haul and they are not formmulated to squeeze out that last couple HP. Reducing frictional losses beyond a certain point results in compromises wrt lubricant lifecycle and component wear. Quote Link to comment Share on other sites More sharing options...
Synesthesia Posted May 17, 2006 Report Share Posted May 17, 2006 indeed, I stick to my mobil 1 indeed, I stick to my mobil 1 Quote Link to comment Share on other sites More sharing options...
mts Posted May 17, 2006 Author Report Share Posted May 17, 2006 I too use Mobil 1, but have heard all good about Royal Purple. Especially in industry Quote Link to comment Share on other sites More sharing options...
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