i changed my oil this summer in my 1972 Austin Mini 1000 and I got to thinking about the best oil (and ordering some “vintage approved” pricey stuff) and it occcured to me that since the transmission is in the sump and is lubricated with the motor oil, shouldn’t I choose an oil that would best stand up to those kinds of stresses? And since motorcycles share the same transmission lubrication method, wouldn’t motorcycle oil be the best option?
i only put a 800-1500 miles a year on the car during the summer and autumn. And I try and change the oil every spring (just because). So on the next go-around, does anyone recommend a switch to motorcycle oil? Does anyone have any experience with this type of change? Is the whole idea too clever by half?