Hi Guys, with it being so hot here at this time of year I have decided to stay undercover and do a little maintenance work on some of my lawn mowing and other small engine equipment (oil change, filters etc). I have a range of engines from Honda, Briggs and Stratton, Husqvarna and the inevitable Chinese Honda clones, all four stroke.
Not too surprisingly I can`t find most of the service manuals so I did a very quick search on engine oils on the internet. Every single manufacturer recommends their own brand of 10W-30 detergent oil for all of their air cooled engines, regardless of whether these engines have oil filters or not. All at a vastly inflated price over regularly available 10W-30 engine oils.
The one manual I did find was for my GX-165 Honda clone pressure washer. This engine has no oil filter and the recommendation is for a non detergent SAE 30 oil.
This makes perfect sense to me as I don`t want a detergent oil keeping any detritus in the sump in suspension. Can anyone explain to me why all the western manufacturers are advocating their own branded detergent oil for engines without oil filters? It`s almost certainly made by one of the big petrochemical companies and just bottled with a different label.
Yes I know this is a diesel engine forum, so stop throwing things.
Bob