put in 10w40 synthetic or 10w40 conventional
10w40
to put the oil in the lawnmower's crankcase would be fine, so long as it is an appropriate viscosity.
I can't imagine that would make much difference. The different weights of oil affect the durability of the oil in the long term and its performance in high or low temperatures. hi just to let everyone know i went ahead and used the 10w40 oil instead of the 10w30 that is suggested in the ryobi petrol lawnmower manual and it worked perfectly i have a 140cc 4stroke petrol lawnmower model no RLM140SP thanks steed69
10w40 semi synthetic
10w40, or 20w50
The majority of 4 cylinders use a good 10W 40 Motor oil. No It Will Do Just Fine With 10W40
you need 10w40 non synthetic oil for this bad bike!!!!!
SAE 10w30 weight synthetic oil.
10W40 or 15W40 semi-synthethic
0.6 litres
4 quarts 10W40