The fuel cars(nitro) change oil between each run,as the nitro dilutes the oil very badly.The only weight I know that is used is 70 wt,and as for make it depends on who is sponsoring which car.Force has his Castrol specially mixed,The CSK car uses a special blend of Havoline 70 wt synthetic,Pedregon(Cruz) has Quaker State decals on the side,but I don't know who is making his oil,I'm sure it's a Shell product. I don't run a fuel car,but in my Dodge race car(NHRA Super Street class),I use Quaker State 10w40 right off the shelf at Wally Mart.
[ May 19, 2003, 05:19 PM: Message edited by: Chris 2421 ]