Blog
Every Small Engine Lab article, newest first. Each one links to its sources.
SAE 30 vs 10W-30: Which Oil Should You Use in a Small Engine?
The real difference between SAE 30 and 10W-30, what Briggs, Kohler, Honda, Kawasaki and more recommend, and when to use each in a mower or generator.
Generator Oil Change: How and When to Change Generator Oil
When to change your generator oil and how to do it, step by step, for tip-drain, drain-bolt and drain-valve generators, from 7 brands' manuals.
Generator Oil: What Type of Oil Does a Generator Take?
Which oil your generator takes, how much it holds and how often to change it, from the manuals of 13 generators by Honda, Generac, Champion, Predator and more.
2-Cycle Oil Mix Calculator: Ratios and Charts for 50:1, 40:1 and More
Get the exact amount of oil for any 2-stroke mix ratio, plus charts and the ratio and oil 14 brands actually require.
Ethanol-Free Gas: What It Is and Does Your Small Engine Need It?
Is ethanol-free gas worth it for your mower, generator or chainsaw? We checked what 14 manufacturers require, why E15 is banned and how to store gas.