I am reviving a 1982 Kawasaki GPz550 and asked about their recommendations for motor oil. This is a shared sump air-cooled bike.
He said they only use Castrol 10-40 conventional as they have seen too many using a synthetic have clutch slippage.
Might be right as I remember putting in, I think Motul, it is green, semi 10-40 right before I stored it and it was slipping right after the change.
I just drained the 'Motul' out (had 95 miles and 25 years on it) and used a sealed 20-year-old jug of Honda GN4 10-40 to run a bit over 1000 miles. Have a few more things to work out before I can run it down the road, so I have not been able to ride it yet.
Been pretty much a converted to full synthetic over the years so going back to a conventional is hard to get used to.
I recently bought some Mobil 1 10-40 4T bike oil and am wondering whether to heed the shops suggestion?
He said they only use Castrol 10-40 conventional as they have seen too many using a synthetic have clutch slippage.
Might be right as I remember putting in, I think Motul, it is green, semi 10-40 right before I stored it and it was slipping right after the change.
I just drained the 'Motul' out (had 95 miles and 25 years on it) and used a sealed 20-year-old jug of Honda GN4 10-40 to run a bit over 1000 miles. Have a few more things to work out before I can run it down the road, so I have not been able to ride it yet.
Been pretty much a converted to full synthetic over the years so going back to a conventional is hard to get used to.
I recently bought some Mobil 1 10-40 4T bike oil and am wondering whether to heed the shops suggestion?
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