Prior to joining TopSpeed, John held senior editorial positions at Autoblog and Winding Road, with his work also appearing on Motor1, Hagerty, Carsfancy, Autoline After Hours, and other outlets. John ...

One of the most ignored areas of building and maintaining a race car is the fuel system. The fuel tank, filters, vent system, and fuel line size all must be designed to work together to supply the ...

Filling up a car with gas is second nature for most drivers. But what is not as well known is how dirty a car's fuel system can get over time. If you use low-quality gas without extra fuel additives ...

Adding a massive fuel pump and a large set of injectors might work in a drag-only vehicle, but its street manners will be quickly revealed once the vehicle hits the road for the leisurely ...

Anyone who has gone to school to learn how to repair engines of all types, such as myself, will have learned the fundamentals of how they work. It's crucial for troubleshooting and diagnosing engine ...

Freightliner glider kit with APG's dual fuel system. Photo: APG The Harrison Truck Centers Severe-Duty Glider Kit for the Freightliner 122SD makes use of a Fueled By Flare dual fuel system designed by ...