On the temperature scale I’m between the 10w40 and 20w50. Thinking I’ll go rogue and use a quart of each and make a 15w45 and see how it works out. I’ll be due for my first oil change in about 2 hours.
Go for one or the other.
It is never a good idea to mix multigrade oils
The 20 W50 will be a little thicker when cold so may require you et the engine warm up fopr a few minutes before moving off.
If it is too thick you will hear the starter straining to crank the engine on really cold days.
The main reason why every one tells you their Honda push mower starts so easily is Honda use 10W 30 or 10W 40 oil so when cold you are pulling against the viscous drag of a 10W oil rather than a 30W oil.
And yes it does make a big difference.
#3
StarTech
Kawasaki sell a 15W50 full synthetic with zinc additive. I don't have the PN for the quart bottle as I am buying it in 5 qt jugs.List for 45 usd per 5 quarts.
