If your spark plugs look like this… here’s what it can tell you about your engine

WTF is happening!? Our DPF regen isn’t always going up. It’s going backwards at time and not heating up for hundreds of miles. What’s going on here?

How often should you change your oil. If it’s a diesel, we think you should do it more often then you think.

Ever wonder what does a OM647 in-line 5 cylinder from a T1N Mercedes Sprinter Van weighs? It’s not what you might expect from a turbo charged cast-iron block with an aluminum head.