Is this for gasoline engines?

This is for Onan gas generators

Can i use this in a wood chipper with a 4 cycle engine?

If your wood chipper requires 15w 40 weight oil this would most likely meet the motors requirements.

It will work for 2022 Ram 2500 diesel?

Yes. It makes any diesel fuel become premium diesel. The 2022 Cummins may not NEED it as much as an older high mileage diesel, but will still get benefit from it

Onan Onamax Sae 15w 40 Engine Oil 32 Oz

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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30239CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your generator with the oil it deserves—because your RV’s heart beats Onan!

HIGH TEMP DEFENSE - Formulated to combat oil oxidation and viscosity increase under extreme heat
EXCLUSIVE COMPATIBILITY - Specifically designed for Onan generators—don’t settle for less
PERFECT SIZE PERFECT FIT - 32 oz. bottle tailored for easy handling and precise refills
FACTORY TESTED RELIABILITY - Engineered and approved by Cummins for peak generator performance
OPTIMIZED ENGINE LONGEVITY - Reduces engine wear, extending your generator’s lifespan

Onan OnaMax SAE 15W-40 Engine Oil is a premium conventional oil specially formulated to reduce high-temperature oxidation and engine wear. Factory-tested and recommended by Cummins, it ensures optimal performance and longevity for Onan generators. Packaged in a convenient 32 oz. bottle, it’s the trusted choice for RV owners who demand reliability and precision.

Specifications

ASIN	B00278MET8
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#5,097 in Automotive ( See Top 100 in Automotive ) #86 in Motor Oils
Brand	Cummins
Brand Name	Cummins
Compatible with Vehicle Type	Generator
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 1,052 Reviews
Global Trade Identification Number	00690781000704
Included Components	Oil
Item Type Name	Oil
Item Weight	1.9 Pounds
Liquid Volume	1 Liters
Manufacturer	Cummins
Manufacturer Part Number	326-5336
Model Number	326-5336
Package Information	Bottle
SAE J300 Viscosity Grade	15W-40
Size	32 oz
UPC	690781000704
Unit Count	32.0 Fluid Ounces
Vehicle Service Type	Generator
Viscosity Level	Medium to High

Reviews

J**N

12.04.2026

F**R

5.04.2026

J**E

5.09.2025

R**S

23.03.2026

C**S

2.04.2026

T**M

9.02.2026

D**N

15.10.2025

A**R

22.09.2025

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30239CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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