30 wt
5w30
Sae 30w
SAE 10w30 full synthetic any major brand.
Any straight 30 weight should do.
SAE 10w30 full synthetic.
10W30 can be used, but SAE30 is best. 10W30 can run a bit hot, in warmer climates.
depends on climate, for colder used 10-20 or 10-30, for warmer use 10-40
Try here, http://userguides.50webs.com/ This sites has all kind of out of date or discontinued manuals ie Craftsman, Dewalt, Sony, Pioneer, etc.
If the lawnmower has two compartments one for gas and the other for the oil, then put gas in the gas and a 30w type oil in the oil compartment. Simple as that. If you have an engine with only one compartment then you'll need to check on the manufacturers suggestions which is usually 40:1 or something close.
electricity
S.A.E. 30 wt. motor oil is preferred.10W30 is acceptable, particularly in cooler weather.