The powertrain is the whole structure that pushes your car, and an alternator is a critical component of that puzzle. After the battery, it’s the most important part of the whole electric system. It’s needless to say how important a good alternator is, and one such good alternator is the Duralast alternator I have been

I wrote this because I used Marvel Mystery Oil the way a lot of us do: a buddy swore it would quiet a tick, swell a leaky seal, and “wake up” a high-mileage engine. I wanted a clear, first-person look at what actually goes wrong, why it happens, and when this old red bottle still