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 ...

I’ve talked with thousands of owner-operators and many fleets about when they change their engine oil and why. The most common answers are 15,000 miles – and a blank stare. Often someone will add, ...

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 ...