tommiehawke
New Member
i bought a 2000 allegro bus with a 330 hp cummins engine last may. when i bought the bus i had it serviced with a 15000 mile oil change. shortly after the purchase, my wife became ill and has since passed away. as a result there has been very little mileage accumulated on the bus. nowhere near the 15000 miles for which the service was intended. my question is; should the engine oil and filters be changed every year or when the mileage indicates. i have heard arguements on both sides. i have heard that the oil builds up a toxicity over a period of time, even without mileage. i have also heard that this is hogwash. since this is a fairly expensive outlay to change the oil and filters, any info will be appreciated.
ken
ken