Maxima Pro Plus+ Synthetic 4T Engine Oil 10W-40 1L

Engine oil is the cheapest insurance you can buy for a 4-stroke engine. Maxima Pro Plus+ Synthetic 4T Engine Oil 10W-40 1L (part number 30-02901) is a 4-stroke engine oil from Maxima Racing Oils, in 10W-40 (1 liter). Ester-fortified full synthetic 4-stroke oil.

Witchdoctors carries Maxima oils, fluids and chemicals for motorcycles, ATVs, side-by-sides and more. Read the specs below, and contact our team if you have questions before you order.

Why Choose Maxima

Maxima Racing Oils has formulated oils and chemicals for motorcycles, ATVs, side-by-sides, snowmobiles and watercraft for decades, and its products are widely used in motocross and off-road racing.

Key Features

• Ester-fortified full synthetic 4-stroke oil
• Maintains viscosity and film thickness
• Next-generation additives protect against wear and deposits

Specifications

• Brand: Maxima Racing Oils
• Part number: 30-02901
• Product type: 4-stroke engine oil
• Grade / viscosity: 10W-40
• Size: 1 liter

Compatibility

Always follow your owner’s manual for the correct type, grade and capacity. If you’re not sure which product your machine needs, contact our team with your year, make and model.

Buying Guide

Use these points to choose the right product:

• Follow your owner’s manual for viscosity and the JASO or API rating your engine needs.
• Wet clutches need motorcycle-specific oil (JASO MA/MA2); avoid automotive oils with friction modifiers.
• Synthetic vs mineral: synthetics resist heat and shear longer; mineral oils suit break-in and older engines.
• Buy by the gallon if you change oil often or run several machines.

Use Cases

• Oil changes for motorcycles, ATVs and dirt bikes
• Hard riding, racing and hot weather

How to Use

Warm the engine, drain the old oil, replace the filter and crush washer, then refill to the level in your manual. Check the level again after a short run.

Safety

Wear gloves and eye protection, keep products away from children and pets, and recycle used oil and fluids at an approved collection center.

Service Intervals

Change oil at the interval in your owner’s manual, and sooner after racing, dusty riding or long storage. Many riders change oil every race weekend or every few hundred miles of hard off-road use.

Signs It’s Time

• Oil is dark, thin or smells burnt
• Clutch slips or shifting feels notchy
• You’ve passed the service interval
• After a race weekend or long storage

Why Buy From Witchdoctors

Witchdoctors carries genuine Maxima Racing Oils products, and our team can help you choose the right oil or fluid for your machine. Most orders ship fast, and we stand behind what we sell.

Pair It With

• Maxima Assembly Lube 4 oz (69-01904)
• Maxima 5 Gallon Pail Pump (10105)
• Maxima Fab1 Spray-On Air Filter Oil (61920-N)

Maxima Oils & Aerosols · UTV & ATV Engine Oil · Victory & Indian Motorcycle Oil

Helpful Guides From the Witchdoctors Blog

• Polaris Tech Tip: How to Inspect Polaris UTV/ATV Engine Oil and Filtration
• Why Use a high Quality Motorcycle Oil Filter?

Frequently Asked Questions

Is this genuine Maxima?

Yes. Witchdoctors sells genuine Maxima Racing Oils products.

Which grade or weight do I need?

Use the grade in your owner’s manual. If you’re unsure, contact our team with your year, make and model.

How should I store it?

Keep containers sealed, upright and out of direct sun and freezing temperatures.

How do I dispose of used fluids?

Take used oil and fluids to an approved recycling center or parts store collection point.

Where to Ride

Fresh fluids, then go ride:

• Ross Maxwell Scenic Drive (Big Bend National Park, Texas): desert canyons down to the Rio Grande
• Ohio Triple Nickel (SR 555) (southeast Ohio): rolling hills, blind crests and tight curves

Order Today

Add Maxima Pro Plus+ Synthetic 4T Engine Oil 10W-40 1L (30-02901) to your cart and Witchdoctors will ship it fast. Questions? Contact our team.

Shipping

Qualifying Retail orders $159.99 or more will receive free ground shipping. Free Shipping Terms and conditions.

All orders over $500 will require a signature.

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Product Availability

We show real time product availability. These products normally ship the same business day but may ship from one of our warehouses across the country. If an item requires additional processing time you will be notified.

Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.