[008]

I seem to remember that someone had mentioned that their manual specified a different weight of oil for engine that will be used on the track. My manual only says to change the oil and filter more often. As I'm going in for my AS service I'm bringing my own oil and I wanted to know the other suggested weight, if there is one. Right now I'm probably putting in 5W40 Redline. Any other suggestions?

 

[008]

Is 10W60 recommended for the fed? My tech said they only recommend 5w40 as the cold viscosity is too high on the Castrol RS. Anyone using it? would be great because I still have some left over from my M3.

 

[TripleBlack_NJ]

Castrol Formula RS 10W/60 is recommended by lotus for track or hard street driving.

I plan on using it during the summer.

here is the lotus oil article:
http://www.grouplotus.com/media/car/doc/engineoil.pdf