Sanli LazerCut LCS400 Questions & Answers (page 2 of 2)

I just use the standard unleaded without any problems. Be careful that you don't run the mower in the choke (fast) zone as it seems to burn out the spark plug which I did once. No problems since, ever.

Standard unleaded and remember to top up oil and change regularly for long life. You. An add a thimble of 2 stroke oil to petrol this helps reduce upper cylinder wear in small 4 stroke engines cheers matt

SAE 30 is the recommended oil for your machine. Adding a thimble full of 2 stroke oil to your fuel (not the oil you are using in the sump ie: SAE 30) is a good idea but don't use more than a table spoon full. Bloke next door used the same oil as the sump, did not damage the engine but soon found his spark plug black and clogged up. also oil residue in the oil injection system (carburetor) needed to be cleaned out. As a rule - change your oil and use new fuel every spring, always use 95 not 92 octane fuel unless you have too. I think 98 is better used than 92 octane if you have no option. 92 octane fuel seems to be full of impurities. The overhead valve 4 stroke engines tend to run cooler than their older brothers also modern alloys in valves don't burn out like they used too using higher octane fuels. We have had 4 stroke engines running for years in insane conditions. What I do is add 100ml of Engine Protect with the oil from day one (This is not a plug for Liqui Moly) but I'm a great believer in the properties of (Molybdenum Disulfide). Liqui Moly has it as part of its make up. It worked a treat in the British Spitfires during WW2.