Roush 402R (Oil Brand and Grade Used)

[Sawdust]

For all you Roush 402R engine owners out there. What type of motor oil and grade of oil are you using for 402R?

[ha_pe_1968]

Hi!

I use 20W50 Valvoline VR1 Racing at my Roush 427R. I was talking with Dennis Olthoff when i was buying the car - he recommended 20W50 for normal use, Mobil 1 10W30 for racing. Mobil 1 is not available here so i am going with 20W50 since 4 years without issues.

Peter

[RodKnock]

Depends on your climate. If you reside in a cold weather climate, like Ontario, then I'd choose a lighter grade than 20W-50. Something along the lines of a 10W-30, 10W-40 or 15W-50.

[Sawdust]

Thanks guys for your comments!

[Got the Bug]

I hadn't looked at the Roush website in a while, but found it interesting that they're not selling the 402 anymore, but they offer 5 flavors of the 427 SB. Isn't that the motor that was giving them fits for a while?

All of their small block 427's list 10/30 as the recommended oil. I want to say that they used to recommend 10/40 for the 402.

I'm using my own home brew method, with a 50/50 blend of Joe Gibbs 15/50 and 10/30.