Below you will find the best synthetic oil for a 2004 Yamaha 40A (3-cyl. 2-stroke; 42.59cid). Maximize your vehicle's potential with 100% full synthetic oil that is made in the USA! For more than the past 50 years, AMSOIL has perfected the art of maximizing efficiency and engine life. The advanced synthetic formulas deliver superior protection from heat, friction, and wear, keeping engines as good as new for miles. Upgrade to AMSOIL today and experience better performance, reliability, and reduced oil consumption. Click add to cart for more details. Sign up as a preferred customer and get discounts and more! The oil type, capacity and oil filter (if available) are listed below and verified for accuracy. Upgrade now!
Recommended oil for my 2004 40a (3-cyl. 2-stroke; 42.59cid)
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Engine Oil HP Marine Synthetic 2-Stroke Oil |
Great for Evinrude® E-TEC™ factory-lean setting (this replaces the Evinrude XD100™ 2-Cycle Oil). Superior performance as an injection oil or at 50:1 pre-mix. Prevents deposits, shields against wear and tear, low smoke, fights rust and has minimum aquatic toxicity. Made in the USA! |
HPMQT-EA
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| Engine Oil Synthetic 2-Stroke Injector Oil |
Our synthetic 2-stroke injector oil will minimize wear and tear and protect the life of your engine. Protect your engine with this lube which has reliable film strength, protecting piston scuffing and bearing damage. Made in the USA! |
AIOQT-EA
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| Gear Lube AMSOIL Synthetic Marine Gear Lube 75W-90 |
Fantastic performance for gears and awesome protection from shock loading. Fights foam and keeps extreme pressure standards even when contamination reaches 10% from water. Great lube for V-drives, bow/tunnel thrusters, lower units, sterndrives, and transmissions. Also great for ATVs. Made in USA. |
AGMPK-EA
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Awesome formula for marine applications. Resists rust and corrosion. Specially formulated to protect your boat engine. Stay out of the repair shop and stay on the water enjoying a beautiful day out. Like revving the boat engine without worrying about engine performance? We have you covered!
