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TRIAX Power 4-Stroke 10W-30 Full Synthetic 4-Cycle Small Engine Motor Oil | For Lawnmower, Generator, Tractor, Log Splitter, Snow Blower, Pressure Washer, Cement Mixer, and More (1 Quart)

Based on 617 reviews
Condition: New
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$12.79

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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Oct 28
Order within 17 hours and 8 minutes

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At a glance

Condition
New
Size
1 qt
Model
TRX-P4S
Weight
1.9 lb
Liquid Volume
32 fl oz
Package Information
Bottle
Flash Point
230 °C

Features 5

  • HIGH-ZINC FORMULA: Contains 2X the zinc of OEM and competitor oils, delivering unmatched wear protection for small engines
  • COMMERCIAL GRADE DURABILITY: Extreme shear stability and thermal resistance protect engines under high loads and long hours of operation, providing up to 3X the lifespan of conventional 4-stroke oils
  • ALL-SEASON: Provides reliable performance from -40F to 130F with excellent deposit control to prevent soot buildup, valve sticking, and engine damage
  • CLEAN, QUIET OPERATION: State-of-the-art detergents ensure pristine engine cleanliness, reduced smoke, and quiet running

Specs 20

SAE J300 Viscosity Grade 10W-30
Brand Triax
Liquid Volume 32 fluid ounces
Package Information Bottle
Vehicle Service Type Garden Tractors, Generators, Mowers, lawn tractors, compressors, pressure washers and other 4 stroke air cooled engines in a wide range of applications., Pressure Washers, Small 4T Gasoline Engines See more
Brand Name Triax
Manufacturer Part Number TRX4T30
UPC 850023978370

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Good Synthetic Oil for Lawn Equipment and Small Engines
Size: 1 Gallon
The TRIAX Power 4-Stroke SAE 30W Full Synthetic oil has been working great in my lawn equipment with no issues so far. I mainly use it in my lawnmower and snowblower, and the engine performance has been smooth and consistent. One reason I have been more careful about oil changes is because a few years ago I made the mistake of not changing the oil for a very long time, and eventually the engine blew up. Since then, I try to stay on top of maintenance, and this oil has been a good choice for keeping my equipment running properly. The full synthetic formula gives a little extra peace of mind, especially during hotter weather and longer mowing sessions. The 1-gallon size is also convenient because it gives me plenty of oil for multiple oil changes between my lawnmower and snowblower. The oil pours cleanly, and so far I have not noticed any excessive consumption or issues while using it. It seems to be a solid option for regular maintenance on small engines. For the price, this has been a good purchase and has been working exactly as I hoped. ... show more
Reviewed in the United States on May 25, 2026 by JR

Best oil I’ve found for generators and air-cooled engines
Size: 1 Gallon
I own a generator and have tried almost every 10W-30 oil on the shelf. Most of them did not last long in my air-cooled small engine, and I noticed oil loss/evaporation after running it for long hours. This TRIAx Power 4-Stroke oil made a real difference. If you own a generator, pressure washer, or any air-cooled small engine, this is the oil I recommend. The first oil change you may still lose a little oil, especially if the engine was already used with other oils, but after the second oil change my engine ran much better and the oil level stayed more stable. Buy it with confidence. I wish I had found this oil earlier. ... show more
Reviewed in the United States on October 3, 2026 by Abner P

Amazing performance.
Size: 1 Gallon
Great oil! Works great in my self propelled lawn mower, predator 212, tractor, and anything else 4-stroke small engine related. Use this oil in your hardworking engines and prevent wear and tear. Oil is priced great and love having a gallon of oil around. This oil doesn’t get burned up and I didn’t have to top off the oil and all since I did the change 10/10! ... show more
Reviewed in the United States on June 18, 2026 by Luke

Excellent Small Engine Oil
Size: 1 Gallon
This is an excellent small engine oil at a reasonable price. While multi-grade oils are all the rage these days, they aren't always the best choice, especially in older engines used in hot climates. I'm using this in several of my power equipment engines and there's an obvious audible difference in how they sound. The engines are quieter with less mechanical noise coming from them. This is one of the few manufacturers who make a full synthetic in 30 wt. ... show more
Reviewed in the United States on July 18, 2026 by Audio Nut

Good product
Size: 1 Quart
Just what I was looking for. Needed to do an oil change on my riding lawnmower and this did the job.
Reviewed in the United States on October 6, 2026 by JrPena

Good value
Size: 1 Quart
Seems to be a good product
Reviewed in the United States on September 28, 2026 by Gadawg2020

Good Item
Size: 1 Quart
Appears to be a good product and will work well for what I needed.
Reviewed in the United States on September 27, 2026 by wow

Expecting good things.
Size: 1 Gallon
I’ll be honest I have always used automotive oil in small engines and generators with a couple exceptions and knock on wood never had a problem, but I saw this and decided it’s time to use the right oil. I’ll assume it’s got whatever oil needs because I am not a fluids engineer or chemist, but I will say I like the company’s philosophy. They seem really passionate about oil and keep racking up OEM approvals. Good enough for me. I will say though MOBIL 1 synthetic according to a quick search has about the same zinc content and is cheaper. So I’m assuming there is something else special about this oil which makes it better for small air cooled engines. Other things I like are the bottle with its built in spout and the price is right compared to other air cooled small engine oils. ... show more
Reviewed in the United States on December 24, 2025 by WESIII
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