ISX and Bypass Oil Filter Systems

[Kevin7898]

You bring up several very good points. however anyone that does extended drains, without pulling an oil sample every 15k miles is stupid and asking for everything you brought up. There is absolutely 0 reason to dump good oil out if the sample comes back from a reputable lab clean. Besides every owner should run samples anyways regardless of if you are running extended drain intervals or not. Could save you a motor if you have an injector go and you are washing your cylinders and bearing with excess fuel.Samples will also tell you if your head gasket or other gaskets are going long before you see visual signs in the oil. It will also tell you how much of those minute particles are in your oil, letting you know if you have premature wear. Darn good insurance if you ask me, and for 25-50 bucks you can't go wrong, only save money. Cummins, cat etc are both great labs with a few other aftermarket companies, Polaris and black stone being two that I have used.