oil - types of oil

gary smith

New Member
Would it be okay to use a semi synthetic oil or a 15/40 minerel oil in my 67 2000? or should I stick to the original 20/50.I have noticed a slight rattle on cold start up and wondered if thinner oil would help, I have the proper good quality filter fitted.regards gary
 
Its quite likely that a thinner modern oil (10/40 - 15/40) would actually make the starting rattle worse, but, on the other hand it may allow the pressure to build quicker which might make it quieter.

Theres basically no harm in trying it, after all, if you find after a couple of runs that the noise is worse, then change to oil again for the 20/50 , the engine will benefit from two oil changes if nothing else !

Richard
 
Thanks webmaster,put valvoline 15/50 in and new filter no rattle at all.Car even seems quieter and more responsive thanks again. gary
 
Back
Top