Letter Re: Advice on Engine Oil for Motorcycles
James, I’ve been reading your oil/energy columns. Very informative, thank you. It seems I am getting some less than adequate answers to my question posed to my local motorcycle dealers. I have two motorcycle’s (both about 45-50 mpg). Buying ‘motorcycle 20W-50 oil’ or “Harley Davidson [brand] 20W-50″ motorcycle oil is more expensive versus just 20W-50 oil. If you have time, is all 20W-50 the same or should I pay the extra at the motorcycle shop since motorcycle engines run at higher rpm’s and the oil does need to have whatever makes them more resistant to the heat and stresses associated …