Originally Posted by mcwilly
I did the pressure washer and mower yesterday and saw some serious fuel dilution.
Pressure washer is a Loncin G200FAÂ Honda clone. I took about 750ml out and refilled with 600ml 10w30 PWB dino. Smelled like gasoline. I am lax at using the fuel shut off lever at times though, so I will get back on that. This unit was bought brand new in 2016, this is the third oil change, I havent seen this kind of dilution in it before. Probably only sees 12 hours of service per year.
Lawnmower is a Koehler push assist mower, I cant remember what size engine right now, I will check when I get home. New to me for two years, sees about 10 hours use per year. I remember there being fuel dilution last time I changed the oil but I didn't measure it that time as I wasn't sure the service history. Spark plugs and air filter look almost new. Inherited it from an older family member, it has seen very little use.
I drained out just under 900ml and refilled it with 500ml of 10w30 PWB dino. 400ml of gasoline in there! Poured just like water.
I last changed the oil in both of these in August last year putting in PP 5W30 in both. They see about 15-30 mins use each week in the summer. Pressure washer is stored indoors in the winter, lawnmower stays in the garage over winter and sees subzero temperatures.
Is there anything I can try to lesson the dilution? Thicker oil? Change more often? Try to run it longer and harder? Anything I can clean or replace?
Thanks in advance!
Adding some pics to my post, I tried to clean some things up on the Kohler 149cc courage mower.
I found the air filter also smells like pure gasoline. Didn't really notice any leaks or any reason the air filter could be soaking up gasoline.
I dont have another one on hand so I sprayed it with some degreaser and rinsed it off. Still smells strongly of gasoline. I also have some air filter spray oil I can spray back onto it, as I'm pretty sure it is an oiled filter. Just letting it dry now.