Pardon me if this topic has already been beaten to death, I tried the search but it seemed to deadhead.
Motor oils have advanced considerably since my T140 Bonneville was born at Meriden Dec 1972. Originally, I used Castrol GTX 20W-50, but that particular product has evolved into something else I believe. Here in the states many older motor cycles seem to do well with various "V-twin" formulations, designed for air-cooled engines that share oil with the clutch/tranny.
Castrol makes one available from a local auto parts store for 11 USD per quart, see pic below. What do you think, is this a good choice? thx - CW
Motor oils have advanced considerably since my T140 Bonneville was born at Meriden Dec 1972. Originally, I used Castrol GTX 20W-50, but that particular product has evolved into something else I believe. Here in the states many older motor cycles seem to do well with various "V-twin" formulations, designed for air-cooled engines that share oil with the clutch/tranny.
Castrol makes one available from a local auto parts store for 11 USD per quart, see pic below. What do you think, is this a good choice? thx - CW