“How do you actually know the oil is still good?” is a fair question — and you don’t have to take extended intervals on faith. Oil analysis tests your used oil for wear metals, TBN, viscosity, and contamination, giving you real data on your engine’s condition instead of a guess. Here’s how it works and who should consider it.

Track season around Chicago winds down fast once fall hits. If you've got one more open lapping day or autocross before the season closes out, here's what sustained high heat, oil starvation risk, and shear stress actually do to your engine — and why synthetic oil's molecular consistency matters most under exactly those conditions.

Synthetic oil has been around since the 1970s, but the myths about it are just as old. From "it's just marketing" to "you can't switch back," here are 5 of the most common synthetic oil myths — and what's actually true, according to your local Independent AMSOIL Dealer in Bartlett, IL.