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5w30
SAE 30 or 10W30 full synthetic.
the best would be to use 10w-30 synthetic oil all year long
ANSWER:?SAE30 oil above 40 degrees F (4 C) and below this temperature use 5W-30
SAE 30 SF or better rating
Please be more specific about what kind of 'power sprayer'. - Are you referring to a 'pressure washer' ?
Your washer will have a manufacturer like LG or Maytag Then the there will be the kind of washer like a Neptune or Super wishy washy or a Number and letter combination. The kind of washer (Super wishy washy) is the model.
You use whatever the manufacture of the pump recommends. Most use Non Detergent 30 weight oil.
sae30
Isabel Briggs Myers
10w - 30
straight 30 or a 10w30