Can I use regular HD 30 motor oil in a four stroke pressure washer?
Answers:
h.d. is regular oil . h.d. stands for high detergent it has a cleaning agent added to it . To answer your question it wont hurt but it can void your warranty. When i tried to get Honda to fix my a.t.v.under warranty the first thing they wonted was serves records and oil purchase recipe. I did not keep receipt,did not get a.t.v. fixed. That's a fact. If you are under warranty stick to m.s..
Other answers:
yes, won't hurt it.
yes, won't hurt it.
It shouldn't hurt, they do recommend the best oil for their product, but it also depends on the climate in where you live.
There isn't that much difference in those oils, and if doesn't get too cold, where you live, it won't make much difference.
See if Honda has a Q&A site, to check for sure.
30 weight 4 stroke oil is a HD-30 weight. Perfectly fine..... castrol, pennzoil to havoline and inbetween is fine (as long as its a name brand oil of course) you could also feel at rest (and have a little longer lasting engine) and run either 5w-30 or 10w-30 synthetic in it. For the pump.... should use ND-30, or non detergent 30 weight.... (it doesn't need detergents to keep it clean)
No problem at all.