Payment Plans Available For Orders $100+ 💵

4 Stroke Oil

4 Stroke Oil

Protect your engine and maximize performance with our 4 stroke oil, engineered for durability, smooth operation, and long-lasting protection. Designed for high-heat, high-stress riding conditions, it helps reduce wear, improve engine efficiency, and maintain clean performance over time. 


Yamalube-full-synthetic-engine-oil
$22.99
$22.99
Yamalube 10W-40 GP Racing Spec Full Synthetic (RS4GP) Details GP Racing Spec (RS4GP) is Yamalube's race-inspired synthetic flagship oil for on and off road. Based on MotoGP technology - designed f...
yamalube-full-synthetic-engine-oil
$20.77
$20.77
$0.00
Yamalube 15W-50 Full Synthetic with Ester Details This is our best performance full-synthetic oil for use on the road or in the dirt. Fortified with ester, exceeds JASO MA certification, provides ...
Yamalube 10W-40 Mineral 4W Watercraft Engine Oil Yamalube 10W-40 Mineral 4W Watercraft Engine Oil
from $12.57
from $12.57
Yamalube 10W-40 Mineral 4W Watercraft Engine Oil Details Specifically approved for the needs of high-revving four-stroke WaveRunner and Yamaha Boat engines. Provides the anti-corrosion and anti-we...
Kawasaki-Jet-Ski-Oil-10w-40
$11.95
$11.95
Kawasaki KPO Jet Ski Watercraft 10W-40 4-Stroke Engine Oil 1qt  Details KPO Jet Ski® Watercraft Full Synthetic Oil has been developed and extensively tested for your engine to provide superior per...
BRP-Can-Am-SAE10w-50-Oil
$19.99
$19.99
Can-Am/BRP 4T 10W-50 Synthetic Oil Details Engineered for heavy-duty and high-performance 4-stroke engines, including turbocharged, supercharged and racing engines. Formulated using carrefully s...
BRP-Can-Am-10w-40-synthetic-oil
$15.99
$15.99
Can-Am/BRP 4T 10W-40 Synthetic Blend Oil Details Off-Road formula with premium anti-wear additives. Provides superior engine and transmission protection against heat, rust and corrosions even in...
brp-can-am-5w-40-synthetic-oil
$18.49
$18.49
Can-Am/BRP 4T 5W-40 Synthetic Blend Oil Details Designed for high-performance off-road, on-road and PWC 4-stroke engines, including turbo or supercharged powersports engines. Off-road formula with...
Motorex Cross Power 4T Oil Synthetic 10W-60, 1 liter
$23.99
$23.99
Motorex Cross Power 4T Oil Synthetic 10W-60, 1 liter Details Fully synthetic PAO and ester-based, high-performance engine oil for 4-Stroke offroad motorcycles. Extremely good temperature and shear ...
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Mon-Sat 10am-7pm PT // Sun 11am-6pm PT
Payments Plans Available | $100+

Pay in 4 interest-free payments or monthly installments up to 12 months.

In-store Pickup Available!

CA local? In-store pickup is available usually within 24 hours or less!

Family Owned & Operated

Since 1959 Bert's has remained family owned and operated!

Bert's Mega Mall | Parts Store

Bert's Mega Mall has been family owned and operated since 1959 and we have earned over 250+ awards from manufacturers, consumers and our local community. Imagine a "Big Box store" with a small store mentality, welcome to Bert's! Bert’s Mega Mall continues to be a standard in power sports world with our industry leading inventory, selection, and more!"

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