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The Best Oil For Racing: AMSOIL Racing Motor Oil

Browse AMSOIL products designed especially for 

racing applications including Dominator Racing Oils, 

2-Stroke racing oils, synthetic gear lubes, fuel additives and accessories!

AMSOIL DOMINATOR® Synthetic Racing Oil is formulated to deliver maximum power and cooler engine temperatures in high-performance and racing engines, resulting in improved lap times and longer-lasting equipment. DOMINATOR is race-proven to withstand the devastating effects of intense power and high-rpm driving, protecting your expensive engine for the duration of the race. DOMINATOR is the oil of choice for championship race teams on the track, water and dirt. And AMSOIL doesn’t design special formulations available only to corporately sponsored professional racers; the same DOMINATOR formulation the pros use every weekend is available to you.

AMSOIL Synthetic 2-Stroke Oil Saves Racing Engine

Protects against intense heat after engine loses coolant.

After a successful weekend of racing during the opening rounds of AMSOIL Championship Snocross over Thanksgiving weekend, AMSOIL/Scheuring Speed Sports driver Lincoln Lemieux made the Pro Open final on Sunday.

Lemieux fought his way into the top-three and was running strong. But, about 14 laps into the 20-lap race, he started slowing down and losing power. He pulled off the track and drove back to the trailer.When team owner Steve Scheuring arrived, the heat from Lemieux’s Ski-Doo* RS600 engine was overwhelming. “There were parts of the engine that melted,” said Scheuring. “You could smell that antifreeze had gotten hot. Everything was just hot. That’s the best way I can describe it. Just hot.”

The crew opened the engine panels and noticed a $1 clamp had broken, separating the coolant lines and causing the engine coolant to pump from the system. Further inspection revealed intense heat had melted the exhaust power valve covers. The rubber O-rings that separate the cylinder from the head also melted, which caused the engine to lose compression and power. “There were a few other gaskets that actually melted inside the motor,” said Scheuring.

In stock condition, the engine produces about 130 hp, but the team relies on piping, clutch, carburetion and other modifications to increase power by 20 percent. “We can’t do anything to the internals of the motor, so we need to take every one of the options we have and bring them right to the edge,” said Scheuring. The modifications and lack of coolant exposed the engine to intense heat “well in excess of beyond operating temperatures,” Scheuring said.

“In a normal situation when something like this happens, the motor will lock up because of the high temperatures. The rings will stick to the piston. The pistons will score the cylinder walls. There’s a good chance the crank bearings will seize,” said Scheuring.

Instead, the rings and pistons were still free and the crankshaft still turned freely. “We saw some minor [piston] scuffing,” said Scheuring, “and it was like, ‘this is crazy how well the inside of this motor looks.’”

Each one of Scheuring’s Ski-Doo engines makes up a big portion of a race sled’s high cost. “We could take this motor, put new gaskets in it, put new exhaust valve covers on it and go racing,” said Scheuring. “We go above and beyond the capabilities of these motors. If they fail they cost us money, they cost us time and they cost us races, and we can’t afford to lose any of those.”

Scheuring credits AMSOIL DOMINATOR® Synthetic 2-Stroke Racing Oil with saving his engine. “We’ve worked with AMSOIL the last 20 years developing two-stroke oils for our race sleds,” said Scheuring. “In my opinion, I believe 100 percent the reason that motor lived was because of the AMSOIL products.”

AMSOIL Dominator® Synthetic Racing Oil provides superior performance and maximum protection in high-performance and racing applications. DOMINATOR is engineered from advanced synthetic technology to better withstand the elevated rpm, high temperatures and shock-loading common to racing applications. 

Synthetic 4T Racing Oil is proven in the lab and on the track to provide increased performance in kart, junior drag, quarter midget and other racing applications. It offers benefits other oils simply can’t match.

Racers can't win what they don’t finish. That’s why AMSOIL formulators built DOMINATOR® 2-Stroke Racing Oil. This complex blend of oils and additives directly addresses the heat, pressure and friction of race-engineered engines. These engines operate on the edge, yet engine reliability is critical. DOMINATOR does an outstanding job protecting high-performance engines. It adds durability that professional racing teams depend on and delivers confidence so engines can be pushed to the limit.

Formulated without friction modifiers to allow for quick and efficient piston ring seating in new and rebuilt high-performance and racing engines. Contains zinc and phosphorus anti-wear additives to protect cam lobes, lifters and rockers during the critical break-in period when wear rates are highest.

AMSOIL Engine Assembly Lube (EAL) is formulated to cling to engine parts and provide exceptional wear protection, while inhibiting rust and corrosion in newly built or rebuilt four-stroke engines. It is designed to dissolve in oil, helping eliminate oil port clogging and deposit formation.

 (702) 561-3706

 4600 West Liberty Road
 Ann Arbor, MI, 48106-1960
United States
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