DIYbanter - View Single Post

wrote:
Lent pressure washer (B&S 4 cycle, 6hp "Quantum" engine) to
co-worker.
Co-worker checked oil, saw it was low, and added *2-cycle* oil. Ran
unit for another 5-10 hours.

Pressure washer came back a mess. Oil residue all over the place.
Saw
seepage from what looked to be bottom horizontal seam of engine
block,
and residue all over front of unit, and even in air filter (?).

Haven't ran the engine yet. Drained oil last night (after a fight
with
the bottom plastic under-cover to access the bottom drain plug).
Will
change spark plug and air filter today as well.

Is there additional maintenance I need to do (a gas additive?)?

Is the engine going to die prematurely or something?

Thx,
Oliver

The 2 cycle oil is disigned to burn whereas the 4 cycle has properties
to prevent burning. But the 2 cycle oil has plenty of lubricating
properties similar to the 4 cycle, but with fewer detergents. I really
doubt any serious damage was done by topping off with the 2 cycle oil
and running a few hurs. Your co-worker checked the oil and it was low.
Where did it go? That engine had a problem before he came along and
made sure it had enough oil at least. I don't think he should be blamed
for anything big here. If you have an oil leak, fix it.