I use synthetics (Amsoil) in my cars and small engines but some of these motors do not get a lot of use. Oil manufacturer's typically state xxx miles/x months as oil change interval. If the motor is not close to the mileage recommended change interval does the oil really need to be changed based on time elapsed between oil changes alone?
Does synthetic oil "age" (deteriorate) without use?
Do the impurities trapped in the oil deteriorate the oil without running the motor?
Is it a moisture problem?
Curious about this as between autos and small engine equipment I have 6 crankcases to feed and I would hate to waste money on excessive synthetic oil changes due to time intervals alone.
Does synthetic oil "age" (deteriorate) without use?
Do the impurities trapped in the oil deteriorate the oil without running the motor?
Is it a moisture problem?
Curious about this as between autos and small engine equipment I have 6 crankcases to feed and I would hate to waste money on excessive synthetic oil changes due to time intervals alone.