Originally Posted By: gmchevroletruck
Does redline oil have good additives to keep a street engine clean? I've read (and you know you can't believe everything you read) that redline is great for racing but not as good for a street engine - any truth to that?
Also, regarding the high phosphorous and zinc (compared to the Mobil 1 I've been using) - that's phenomenal! After reading one thing that tells me that zinc and phosphorous help to prevent wear, and that it's use is being reduced to satisfy epa requirements, I've been searching for a (5w30) for my truck with higher zddp numbers, so this one sounds great! Then I read something else that told me...too high a concentration of these causes corrosion in an engine over extended time, hence supporting the previously stated "theory" that the Redline would be great for wear protection but not necessarily the best overall choice for a long-term street engine. Again, you can't believe everthing you read, so I'm asking...what do you think? Either way, that would appear to be a great oil, I'm just trying to decide if it's the best oil for my application
These are street oils, and there are many diesels that have put many, many, many miles on oils with that level of zinc and phosphorus.