Oil Viscosity During Summer And Winter...

[macdog]

for M35, whats the general consensis?

cheers Trying MOTUL, but what Viscosity?

[scotty nm35]

Motul 300v 10w40 is perfect all year round with the stock thermostat, I want to try a thinner blend with the 62 degree thermostat that's in there at the moment. (must get the new 73 degree highflow one in soon, the heater isnt working too well.)

[toddlls]

Keep the 2 weights ie 10W40 close to the temperatures you experience where you live. 10 lowest 40 highest. Its not exactly accurate but its pretty close to what you should use.

Read up on articles from 'Bob the oil guy' on a google search

[pipster11]

check out the "goods on oils" thread in the general maintenance section also

Gulf western make an oil that is on par with the Motul 300V but costs around $60 from a wholesaler

i bought some from their recommendations and its pretty good stuff (rb25 tho)

its a proper group 5 ester synthetic which is the same as the 300v, redline and royal purple

things like nulon and castrol full syn are only group 3 which is barely synthetic at all