Motorcycle oil & Powersports Guide
Everything you need to know about oil for bikes, ATVs, snowmobiles, and small powersports engines: why car oil can wreck a wet clutch, JASO ratings explained, 2-stroke vs. 4-stroke, Harley-specific specs, and the right oil for every season. Not sure which guide applies to your machine? Call Alan directly at 225-441-6397.
$20/year, up to 25% off every order, no quotas or minimums. See how the membership works →
By Alan Williams, AMSOIL Direct Jobber #1243776 · Tomball, TX · 225-441-6397
Start Here
The Right Oil for a Wet Sump Clutch
The single most important concept in this whole guide: your bike’s engine, transmission, and clutch all share one oil, and the wrong one causes clutch slippage. Start here before anything else.
General Motorcycle Oil Guides
Seasonal picks, change intervals, and air-cooled specifics every rider should know.
How Often Motorcycle Oil Change Do I Need?
Plus 6 safety tips every rider should follow.
AMSOIL Oil: The Best Oil for Your Engine
A broad look at why AMSOIL fits powersports applications.
Harley-Davidson Specific
Filters, capacity charts, and a full maintenance checklist for Harley owners.
Harley Maintenance and Service Checklist
A complete checklist to keep your Harley running right.
Beyond Motorcycles: ATVs & Snowmobiles
Powersports oil isn’t just for bikes, mud and snow bring their own demands.
2-Stroke & Injector Oil
A completely different lubrication system from 4-stroke engines, covered here.
AMSOIL Synthetic 2 Stroke Injector Oil
Viscosity, pricing, and top performance explained.
Filters
Finding the right filter match for your specific machine.
Amsoil Filter Cross Reference
Find compatible filters easily for your specific bike or ATV.
Frequently Asked Questions
Can I use regular car oil in my motorcycle?
Not if your bike has a wet clutch, which most do. Car oil often contains friction modifiers that reduce clutch grip, causing slippage. Always use a motorcycle-specific oil rated JASO MA or MA2.
What’s the difference between JASO MA and MA2?
MA2 offers higher friction performance and suits modern, high-performance bikes. MA suits older or standard bikes. Both are safe for wet clutches; MB-rated oil is not and should be avoided.
Do 2-stroke engines use the same oil as 4-stroke engines?
No. 2-stroke engines require oil mixed directly with fuel or delivered via injector, while 4-stroke engines use oil in a separate crankcase reservoir like a car engine.
How often should I change motorcycle oil?
It varies by bike and oil type, but a quality full synthetic motorcycle oil generally supports longer intervals than mineral oil. Always confirm against your specific model’s manual.
Protect Your Clutch, Not Just Your Engine
Join as an AMSOIL Preferred Customer and get JASO-rated motorcycle oil at wholesale pricing.
- 25% off every AMSOIL product, permanently
- Ships to the US and Canada
- No minimum orders, no obligation to sell
- $5 birthday coupon plus ongoing rewards
$20/yr, Dealer #1243776, ships US & Canada
Business Opportunity
Interested in Selling AMSOIL Instead of Just Buying It?
AMSOIL Dealers earn commission on every sale, set their own hours, and build a business around a product line people already need. No quotas, no inventory requirements to start.
More Guides & Comparisons
AMSOIL and all brand names referenced are registered trademarks of their respective owners; this article is not endorsed by or affiliated with Harley-Davidson, JASO, Honda, or any other named manufacturer. Lube Oil Sales is an Authorized AMSOIL Independent Dealer (Dealer #1243776). This page contains affiliate links. Last updated: 2026.