okay i did some thinking about it and please correct me if i am wrong, motor oil viscosity rating is based on the two numbers like 15-

40 and what not, the lowest number showing the viscosity when the oil is warm and 40 when the oil is cold seriously i cant even

remember completely. Newer cars engines run anywhere around 190 degree's and up and i seriously doubt the temperature inside a

1/8th scale

buggys differential could get above 120 if even that, so really i could just buy a variety of quart bottles of different viscosity going by

the highest viscosity number right?

Another thought- maybe use as shock oil as well