ET: Engine (Twin) Engine Oil
- Thread starter Doug
- Start date
Valvoline VR-1 20/50. High Zinc for flat cam followers.
Run 1000's of miles on this oil.
Run 1000's of miles on this oil.
G
Graham Smith
Guest
I think this is the oil that Mike Tyler's been recommending on his videos.
Somewhat of a religious issue, but I've been using Royal Purple HPS 20W50 based on these tests:
What is the best oil for a Norton Commando?
Norton Commando Motorcycle Oil Tests by Jim Comstock.
www.accessnorton.com
Doug take care in using new synthetic oils, as they tend to clean the system. Hence loose debris running and making damage to your timingside and the rest.
Only do when had a complete overhaul.
Cheers
Vincent
Only do when had a complete overhaul.
Cheers
Vincent
Joking aside because one of the bonus points is that 'R' leaves the engine internals so clean we decided to use 'R' in the racer gearbox, after one meeting we decided to check, the oil came out black, really black. We filled again with 'R' did another meeting oil came out clean as clean and has stayed so ever since
When thinking about debris returned to circulation by detergent oil I´d believe the oil filter has to do its job effectively, provided it is a suitable type. Yes, fresh grit from the sump will not be great for the oil pump at the first stage before oil enters the filter. Even so, the rest of the engine might be uneffected - or so I ´d think naively . . . .
Second thought, why can debris collect in the sump at all in an engine with oil filter , hmmm . . . .
Vic
Second thought, why can debris collect in the sump at all in an engine with oil filter , hmmm . . . .
Vic
Bits from the timing side?
Debris collected in sump is not a problem while it stays there. Otherwise not great for the oil pump´s return/drain side, will end up in oil tank. Then gets entered into oil pump later and dumped in filter hopefully ?? That requires an oil filter worth its name certainly !
Vic
Vic