Sprint Cup Cars Oil?

[Rand]

Originally Posted By: CATERHAM
Originally Posted By: PhillyJoe
The add packs in off the shelf oil was not formulated with a 750 hp, 9,000 rpm engine, 4 or 5 hour run in mind. Regardless of sponsorship, the NexGen comments are hard to believe.



I agree.
Mineral oil simply can't survive at oil temp's greater than 130C, not to mention the 150C oil temp's that are often seen in NASCAR.
I don't really know what to make of Valvoline's advertising with NextGen. Maybe they're using recycled synthetic in part? Hopefully we can get a question and answer session with them to clarify.


I bet I could find a mineral oil that would survive 266F for 4-5 hours.

 

[Hemi426]

I think the only time Roush-Yates uses Valvoline NextGen is in their Nationwide series cars. These engines utilize roller cams and thus don't require a high amount of ZDDP like the solid lifter cams in the Sprint Cup series. They may be getting the oil to survive by using a 15-quart dry sump and an oil cooler. In the Sprint Cup it's synthetics all the way be it Mobil 1 R or Joe Gibbs, etc. Filters used are not off the shelf. They are usually Wix or Fram and they are designed to filter a little bit but flow a lot of oil.

 

[Robenstein]

Hendrick motorsports used to use special Quaker State racing oil. There is no way a off the shelf SN/GF5 oil would hold up under that punishment.

 

[ffracer]

Most of these teams run special racing oils, especially the ones sponsored by the majors.

Formula 1 has been doing it since the 80s.