Automakers once bet big on bizarre ideas—from swirling airflows to variable compression—and the results were as fascinating ...

Spark plug indexing gives each spark a clearer path to ignite the air-fuel mixture, which can help tuners squeeze out a few ...

After cleaning, allow the throttle body to air-dry completely. Most cleaners evaporate quickly, but waiting ensures that no ...

Consider adding fuel system cleaner periodically to remove deposits from fuel injectors and intake valves. The GX’s direct injection system is particularly susceptible to carbon buildup on intake ...

How do you know when something's a genius invention? For me, it’s when I see it and instantly go: why didn’t I think of that? Today, we’re talking about one of those: the RevForce engine by Alpha Otto ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace the ...

The world is looking mighty volatile these days, so there are plenty of reasons why you should be concerned with your car's engine longevity. Whether you're trying to sustain a higher-mileage car to ...

Gasoline direct injection (GDI) engines have become increasingly popular for their improved fuel efficiency, reduced emissions, and enhanced performance. The latest generations of GDI V-8s become more ...

Direct injection offers numerous benefits over port fuel delivery but could it be a bigger headache than it’s worth? The automotive industry has gradually switched to direct injection over the past ...

Each pouch includes a mixture of detergents that dissolve particulate deposits within the fuel system and keep the intake valves clean. Toro now offers its Premium Fuel Treatment formula in single-use ...