Horsepower & clean air race among imports; mechanical progress; new styles and more…

Aluminum cylinder heads are now pretty much standard fare for car engines by reasons of weight, cost and heat transfer.

A major feature of the OBD-II system is its ability to monitor the evaporative emissions system.

If you belong to any professional associations or are active in iATN forums, you may have heard the phrase Twenty Groups.

From the point of view of gasoline mixed in the right proportion with air, the polarity of a spark doesn’t matter one bit, only the voltage.

The key to the spells we’ll cast here and a symptom of many things that can go wrong with any kind of machine is heat – in the wrong quantity, in the wrong place – produced by friction, by excess electric current, by flame, by acidic chemistry.

The latest addition to the Swedish-made Autodiagnos line of diagnostic equipment is the Multi-Tester pro.