Suzanne asked ... Washing programme stops after 3 minutes?    |    Rif asked ... Kenwood Dishwasher KID60S20 leaking from front?    |    Fraser asked ... Spares for power craft ppcs 38cc?    |    FB asked ... Toyota Yaris Speed Camera Warning Beep?    |    Ela asked ... Worcester 30 Cadillac combi boiler won’t fire up and the EA?    |    Click here to ask your question

what is the difference betwwe a 40:1 & 50:1 mixture??

What is the difference between a 40:1 and 50:1 mixture?? and how does it effect to working of the machine???
Robert, December 2008
It doesn't. Popular misconception. A 40:1 mix oil should only be mixed at 40:1 and a 50:1 mix oil (such as Stihl oil) should only be diluted at 50:1. Never ever get and oil which states a recommended dilution ratio on the bottle and dilute it at any other ratio. You will either under oil your mix or over oil your mix. Either way your machine will start and run, but too rich and you will foul the plug, block the exhaust and cause excessive smoke. Too lean and you run the risk of scoring or seizing your engine resulting in a huge bill at the best or a write off at the worst.

As a rule of thumb the better quality the oil the less oil you need to have correct mix protection. Always ready what thew manufacturer of the oil says is the correct dilution ratio of their oil- not what the manufacturer of your machine states as the two ratios will or could conflict with one another.

pleasant, December 2008