PDA

View Full Version : Valvoline 20-50 MC convential oil in a 2015 St998


dsteve931
05-07-2019, 05:16 PM
Am i ok to put this in for the summer?
JAS POWER
05-07-2019, 05:25 PM
Very thick oil, I would NOT. Stock oil is 5W-40
BLUEKNIGHT911
05-07-2019, 06:15 PM
Am i ok to put this in for the summer?

I run against the grain ( somewhat ) I normally use this Formula ….. 4 qts. 5W-40 FULL synthetic and one qt. 20w-50 also FULL synthetic … I do this to lessen the viscosity loos ….. jmho .. …. Mike :ohyea:
gerald37
05-07-2019, 06:25 PM
I have been using 10W-40 Valvoline Motorcycle oil. I would not use anything heavier and it would have to be motorcycle oil for wet clutch. It is FULL synthetic oil.
Grandpot
05-07-2019, 06:27 PM
Why not just look in the owners manual and use the manufacturer's recommended specifications?:read:
Mazo EMS2
05-07-2019, 08:51 PM
Is there a particular reason that you want to use that specific oil? The specified oil is readily available. Just curious
JayBros
05-07-2019, 10:02 PM
Why not just look in the owners manual and use the manufacturer's recommended specifications?:read:

Always a good, No:cus: recommendation. Unless one has PhDs in petroleum and mechanical engineering it's always wise to follow the instructions of those engineers that designed and manufactured the vehicles.