Do Older Engines Need Oil With ZDDP Additives?

Using a high-zinc oil with a high dose of ZDDP additives helps protect classic car and hot rod engines. AMSOIL Z-ROD Synthetic Oil contains 1400 ppm zinc.



From Farm Field to Showroom: Ford F1 “Friction”

Weaver Customs’ 1950 Ford F1 truck, dubbed “Friction,” has been through its paces. Randy Weaver decided to give it one final “killer” rebuild.



Championship Engine Builder Trusts Only AMSOIL

Jesse Prather

Jesse Prather has tried a lot of racing oils during his 40 years in the business, and AMSOIL synthetic motor oil has earned his trust. Why? Find out here.



2019 AMSOIL Engine Masters Challenge Wrap-up

Patrick Blair returned to Engine Masters Challenge after 11 years away and took the win. But if there was a “perseverance” award, it would have gone to Daniel Boshears.



Gordon Tronson: The Epitome of Awesome

He’s built his own Lamborghini, a Harley that runs on four engines, a 4,000-hp Econoline and a reputation as eccentric genius. Meet Gordon Tronson.



For the Hellephant: We Dyno Mopar’s 1,000-hp Crate Engine

Vehicle builder and TV host Kenny Hauk brought his Mopar Hellephant engine to AMSOIL for a dyno run. Find out if it made its advertised 1,000 hp.



Should You Use Diesel Competition Oil?

dodge ram 5.9 cummins dyno pull

April is here, and for those who love to spend time at the drag strip challenging their reaction time, on a dirt strip hooked to a sled, or tied down on a roller dyno grunting for power, the diesel competition season is upon us.



Groundbreaking Engine Wins 2017 AMSOIL Engine Masters Challenge

amsoil engine masters challenge

The AMSOIL Engine Masters Challenge presented by HOT ROD is run by the University of Northwestern Ohio (UNOH). The field may be smaller, but the competition is no less intense, and the creativity no less compelling. The 2017 AMSOIL Engine Masters Challenge at UNOH in Lima, Ohio, has already seen some fascinating engine concepts that

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What Motor Oil Should I Use in a Methanol Engine?

sprint car sliding corner

Frank wants to know, via our Facebook page, the pros and cons of using mineral oil versus synthetic oil in a methanol-fueled engine. Thanks for the question, Frank.



What’s the Difference Between Horsepower and Torque?

AMSOIL synthetic motor oil 2015 Car Craft Nats Challenger

Rather than offer a technical explanation few people will understand, let’s talk about what torque and horsepower feel like.