What happens if I use 5w30 oil instead of 10w30?

Most oils will mix perfectly, provided they have a similar synthetic. Therefore, there is no problem in mixing 10w30 and 5w30 since one will be topping up. Mixing the viscosity of oils will not have any effect on the engine. 5w30 and 10w30 engine oils have close viscosity, and thus there is no harm in mixing them.

Is 5W better than 10W?

Super oversimplified answer: they are the same at operating temperature but the 5w is designed to flow at lower temperatures than the 10w. You can essentially interchange them because your owners manual will show you a chart with temperatures. If you live in a hot climate use 10w. I’m cold climates use 5w.

Can I use 5W-30 instead of 10w30 in my lawn mower?

Running Cold If your mower manual calls for a 5W-30 engine oil, using a 10W-30 oil is also acceptable. The only difference between the two oils is the low temperature point, with the 5W-30 functioning slightly better than the 10W-30.

What is the difference in 5W and 10W oil?

A 10W or 5W is the index for how easily the oil flows in winter (hence the W). A 10W oil thickens more than a 5W. The other number indicates the oil’s resistance to thinning at high temperatures.

Can I use 5w30 instead of 10W30 in my lawn mower?

Should I use 5W or 10W oil?

There is a small benefit of using a 10W instead of a 5W oil in that the 10W will normally have less viscosity improvers in it. Viscosity improvers help the oil behave “thicker” at higher temperatures, but they do not actually provide lubrication.

Is 5W-30 oil OK for lawn mower?

SAE 30- Warmer temperatures, most common oil for small engines. SAE 10W-30- Varying temperature range, this grade of oil improves cold-weather starting, but may increase oil consumption. Synthetic SAE 5W-30- Best protection at all temperatures as well as improved starting with less oil consumption.