Motorcycle oil - Honda Lawn Mower

[Nick1994]

I have a 5.5hp Honda Lawn Mower, runs great, last changed the oil with some Castrol 10w30. It says to use 16oz of 10w30 oil, which I have some 10w40 Castrol 4T Motorcycle oil I have no use for now, is it safe to use? Or should I just use some Castrol GTX HM 10w30 that I have laying around?

 

[Quattro Pete]

It's a mower. It'll probably run on just about anything.

I run straight 30 in mine, but I wouldn't have a problem using 10w-30 either. Straight 30 should be more shear stable and less volatile though.

 

[spasm3]

The 40 will work great in the mower, lots of zinc in the motorcycle oil, as hot as phoenix is 10w 40 sounds good.

 

[Errtt]

I have the Honda HRX. Ran Rotella 15w-40 for a couple years, then switched to Rotella 5w-40 and been using it for a few years or so now.
If I recall, Honda recommended 10-30. No problems with the Rotella and I'll continue using it. No noticeable consumption - still on the full mark when OC comes due. I change the oil once a year, spring.

 

[Clevy]

It will work fine if you need to find a reason to use it up.

 

[OB4x4]

I vote for the 4T. Should work great under the AZ sun.

 

[ARB1977]

Been running Amsoil Small engine. I got a blend of GC and Amsoil SS 5W20 that one day I'll use.

 

[Propflux01]

You should not use it because it has a motorcycle on the front of it. You can only use it if you remove the label from the bottle so there will not be a motorcycle on it. If you draw a picture of a lawn mower on it, it will protect even better!!

 

[Hokiefyd]

I have two Honda-powered lawn mowers, and one is even a Honda-branded lawn mower, and I've used Rotella 15W-40 and 10W-30 in them before with no issues. I will say that they were easier to crank and start on the 30 grade, especially in cooler temperatures. Anymore, I use 10W-30.