Whether you're running the Dusy Trail, the Rubicon, Moab's Hell's Revenge, or maybe just cruising a Colorado backroad over Pearl Pass, there is one thing that keeps you from walking: Oil. We all know ...

Last month I discussed how oil doesn’t wear out but needs changing only because it becomes too contaminated to do its job. Changing oil at an arbitrary mileage points to only two scenarios, both bad: ...

Recently, Jalopnik discussed whether pre-filling your oil filter during do-it-yourself oil changes was still good advice or a relic from the past. Opinions in the comments section were firmly divided ...

While engines, especially light-duty diesel engines, have become far more advanced over the years with the addition of high-pressure common-rail direct injection, sophisticated turbocharging, and ever ...

Should your fleet start fitting bypass filters? Bypass filters have long been the standard way of cleaning engine oil. But in recent years, the marketplace has seen new technologies from upstart ...

Lubricating oil in any type of internal combustion engine, unless protected by an adequate oil filter, can become contaminated to the point where internal damage is done to the engine and operating ...