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Maxima Maxum 4 Extra 4-Cycle Engine Oil
Maxima Maxum 4 Extra 4-Cycle Engine Oil

$14.99 - $54.99
17% Off - Save up to $3.00
4.86 5 7
Rating: 4.9 out of 5 stars


See Also:
Item #MXM000A

7 Reviews

4.9 out of 5 stars
  •   6 reviews
  •   1 reviews
  •   0 reviews
  •   0 reviews
  •   0 reviews

All Reviews


Verified Purchaser
2 months 23 days ago
4 out of 5 stars
Great Stuff

Very Happy with this product.


Verified Purchaser
1 year 7 months ago Overbrook, KS
5 out of 5 stars
Great Stuff!

Used this in the last 2 oil changes in my 2018 crf250r and its dang good stuff! Made my bike run super smooth and even more crispy. This is all I will ever put in my bike!


Verified Purchaser
1 year 8 months ago Novi MI
5 out of 5 stars
Great product

I have run this in a couple for my bikes for a couple years now. When taking the motor apart for maintenance and such, signs of wear are minimal. I have had experience with Maxima oils. I run 15w50 in my 450 in warm weather and 10w40 in cooler weather.


Verified Purchaser
2 years 9 months ago
5 out of 5 stars
Great oil

Bike has 100hrs on the hour meter now running this oil and Maximas reusable filter. Ive yet to have to touch the motor. Good Stuff!


Over 3 years ago Colorado Springs, CO
5 out of 5 stars
Awesome oil and good insurance!

I run this in everything I own that requires service grade oil. I race a 2015 RMZ450 and it shifts great throughout the life of the oil. Maxima makes great products.

I also recommend Maxima's air filter oil!


Over 3 years ago West Virginia
5 out of 5 stars
Maxima Extra 4 10W-40

I contacted Maxima, this is what they recommended as the very best for my Kawi KLX 250s. Glad I found it on motosport!


Verified Purchaser
Over 5 years ago Knoxville, TN, USA
5 out of 5 stars
Great Oil

In my opinion one of the best full synthetics on the market.

3 Questions

  • Answered:   2
  • Not Yet:   1

Question asked by danco h1

Question: Can I run 15w50 or 10w40 in a KTM 350
Question asked 1 year 6 months ago
Question answered by DaveGearhead
User's contributor status: Top 1
Question answered 1 year 6 months ago
Answer: We suggest following the manufacturer's suggestions regarding which oil to run in your bike.

Question asked by chillwithchet

Question: What should i run for a ttr 90
Question asked 2 years 1 month ago
Question answered by David
User's contributor status: Top 10 Contributor
Question answered 2 years 1 month ago
Answer: Please refer to your owner's manual for what's recommended.

Question asked by buddyo

Question: Is this oil the best for yamaha 350 2006
Question asked 2 years 10 months ago

# Part Numbers

Product Variant Manufacturer Part #
1 Liter / 15W50 32901
1 Gallon / 15W50 329128
1 Liter / 10W60 30-30901
1 Gallon / 10W60 30-309128
1 Liter / 10W40 16901
1 Gallon / 10W40 169128
1 Liter / 5W40 30-17901
1 Gallon / 5W40 30-179128
1 Liter / 0W10 30-13901
1 Gallon / 0W10 30-139128

California Proposition 65

WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.