Regular oil changes are important for keeping your Harley-Davidson motorcycle running smoothly. Waiting too long can cause the oil to become dirty or degrade, which can in turn lead to potentially ...

I have a 1976 BMW 2002 with a mildly modified engine. First, what motor oil do you recommend? The manufacturer recommends 20w50 which can be difficult to find, and of course, motor oil has changed a ...

The best thing i want to say is use only car dedicated 20w50 engine oil and se the result because 20w50 grade for cars are specially designed for wet clutch compatible engines of cars which is similar ...

(A) The reader, a newcomer to Florida, writes that he has three GM cars – a 1987 Fiero, a 1989 Olds and a 1989 Pontiac – and he is not sure what weight oil he should use in them. The reader says that ...