Rider Testimonials

"Switched to AMSOIL 10W-40 in my CRF450R and the difference is night and day. Engine runs noticeably cooler after long motos, and I'm getting smoother shifts. Been running it for a full season now with zero issues."

Mike R.

Motocross Racer

"I ride in Arizona desert heat and DB50 is the only oil I trust. My KTM 450SX-F runs noticeably cooler even in 110-degree temps. Zero engine issues after two full seasons of hard desert riding."

Carlos M.

Desert Racer

"Been running Dominator in my Yamaha YZ250 for 3 seasons. Zero top-end rebuilds, spark plugs stay clean, and I can definitely feel the extra pull. This oil is the real deal for racing."

Brandon K.

Motocross Racer

"My Honda CRF450R was getting notchy in 2nd and 3rd gear. Switched to DBTF and the difference was immediate. Smooth, positive shifts every time. Been using it for a full season with zero issues."

Derek M.

Motocross Racer

"Best chain lube I've used. Stays on through mud rides and creek crossings. My chain and sprockets look brand new after a full season. No more constant re-lubing."

Chase P.

Enduro Rider

"This stuff is magic. Rode through gnarly mud and half of it just fell off when I got home. Hose down and done. Used to spend 30 minutes scrubbing now it's 5 minutes."

Jordan K.

Enduro Rider

"My CRF450R was pinging hard on pump gas. Added MOB and the knock disappeared completely. Bike pulls harder now and throttle response is crisp. Race gas alternative that actually works."

Aaron M.

Motocross Racer

"My KX450F was running rough and bogging out of corners. One tank with QuickShot and it runs like new. Carb was getting gunked up from sitting. This stuff works."

David R.

Motocross Racer

"Used to drain my carb every winter. Started using AST and my bike fires right up in spring. No more carb cleaning, no more stale fuel headaches. Game changer."

Scott W.

Seasonal Rider

"Switched to Shock Therapy 10W in my Showa forks. Night and day difference. Forks feel plush off the top and consistent through the stroke. No more fade after an hour of racing."

Matt D.

Motocross Racer

"My forks were way too stiff on stock 10W. Dropped to Shock Therapy 5W and it's like a different bike. So much more compliant on chop. Perfect for lighter riders."

Emily S.

Trail Rider

"Switched from OEM filters to AMSOIL black filters on my CRF450R. Better construction, better filtration, and they look great too. Zero leaks or issues after a full season."

Steve H.

Motocross Racer