DO NOT JUST PUT 40:1, IT DEPENDS ON THE OIL!!!!
Read your instruction manual, but if you do not have it as a guide use
25:1 for mineral oil
32:1 for semi-synthetic oil
50:1 synthetic oil
ALM Manufacturing offer a range of oils that is available in your local hardware store, Homebase or B&Q, designed specifically for garden machinery, have a look at www.almmanufacturing.com
Richard, January 2012
