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I can't see how the oil has improved your sprag? Probably only the old oil was on there for 1st start. Being both 50 weight when hot, where's the difference? But when cold, won't your new (5W) oil drain out of your sprag more quickly than the 20W?

[QUOTE="Mart UK, post: 677623, member: 13088"] I can't see how the oil has improved your sprag? Probably only the old oil was on there for 1st start. Being both 50 weight when hot, where's the difference? But when cold, won't your new (5W) oil drain out of your sprag more quickly than the 20W? [/QUOTE]

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Norton Motorcycle Forums
Norton Commando Forum
5W50 Synthetic for cold .