Pro R and Pro S. Whats the difference?
Which is the one to use?

 

use PRO R ....

PRO R is fully ester synthetic .. PRO S is semi synthetic

we use pro r in all our cars and also use it for sericing too...chris

www.ccsperformance.co.uk

 

Cheers

 

sorry but the info. above is slightly wrong - the difference is the "grade" ..............................BOTH are full ester synthetics!!
pro-s is available as a 5w40 or 10w50........................
pro-r is available as a 15w50........................

same price structures, the oil you use would depend on the application and vehicle you are using!!

hope this clears things up,
alyn - asperformance.com

 

I use pro-s FULLY SYNTH 10w 50,I would recommend this for road use,with pro-r a better choice for the track.