There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

Variable valve timing (VVT) and variable valve lift (VVL) have very similar names, both referring to variable valve performance. Does that mean that they are basically the same thing? The are most ...

Since the beginning of hot rodding, gearheads have endeavored to increase the performance of internal combustion engines through the optimization of valve timing. It's been proven time after time that ...

What is the Corolla Altis Dual VVT-i about? The Indonesian market has a firm relation with Toyota vehicles and Japanese manufacturer has dropped yet another variant of the best selling Corolla Altis ...

Harley-Davidson has filed a patent application for a variable valve timing (VVT) V-twin engine, possibly for the Sportster to improve economy and reduce emissions. The iconic American manufacturer has ...

If your engine oil has not been changed on schedule, it could damage the VVT-i system. Change engine oil as recommended by your mechanic or the car manufacturer. Courtesy Photo It is obvious that with ...

Many cars today including the Toyota RunX, Toyota Allex, Toyota Raum, Toyota Vitz, Toyota Spacio, keyword being Toyota, specifically small fuel-sipping cars from the manufacturer. Whenever one is in ...

Engines range from 1.0 VVT-i to 1.33 VVT-i automatic Readers report Real MPG to be between 35–65 mpg The Toyota IQ won't be bought on looks. It's runtish, though less abbreviated than a Smart. It ...

It's springtime! Time to start working on your project car, learn a new wrenching skill, discover what everything is under the hood (and how it works), or just spruce up your daily driver. All month, ...