When it comes to choose the best gas for a get-up-and-go mower , there are a few broker to consider . The first and most important affair to keep in mind is that you should always use a clean , fresh , leadless petrol . This ensures that your mower ’s engine runs swimmingly and expeditiously .

The minimum octane rating you should look for is 87 AKI ( anti - knock index ) or 91 RON ( enquiry octane number ) . This is commonly mention to as 87 octane gasoline . Using a higher octane fuel is not necessary and wo n’t allow for any additional welfare to your energy mower .

It ’s deserving noting that if you be in a gamy altitude orbit , you may demand to utilise a different type of gasoline . At mellow altitudes , the gentle wind is thinner , which can affect the combustion appendage in little engines like those encounter in push mowers . In such case , consider use a higher octane gasoline to compensate for the low melodic phrase compactness . confab your mower ’s manual or get in touch with the manufacturer for specific recommendation for high-pitched altitude mathematical process .

Another consideration is the presence of fermentation alcohol or MTBE ( methyl tertiary butyl ether ) in the gasoline . Many gas station now offer gasoline blends with up to 10 % ethanol , commonly know as gasohol . This portmanteau word is generally satisfactory for utilisation in push mowers . to boot , gas blends with up to 15 % MTBE are also satisfactory .

However , it ’s important to be conservative when using gasoline with grain alcohol , as it can potentially cause way out if left sitting in the lawn mower ’s fuel arrangement for prolonged period . Ethanol can soak up wet from the line , leading to phase legal separation and the formation of bank deposit that can clog fuel lines and carburetors . To minimize these risks , attempt to use fresh petrol and consider using a fuel stabiliser if you anticipate stash away your lawn mower for an extended period .

In my personal experience as a gardening and landscaping expert , I have found that using a high - quality petrol from a reputable throttle station is always a good choice . Cheaper or lower - calibre fuels may contain impureness or additives that can negatively impact the performance and length of service of your push mower ’s engine . Therefore , it ’s deserving investing in a reliable stain of gasoline to ensure optimal performance .

To resume , the good accelerator pedal for a push mower is a fresh , fresh , unleaded petrol with a minimum of 87 octane/87 AKI ( 91 RON ) . Gasoline blends with up to 10 % ethanol or up to 15 % MTBE are acceptable , but caution should be exercised when using ethanol blends to prevent potential issues . If operating at gamy elevation , consult your lawn mower ’s manual of arms or reach out to the manufacturer for specific testimonial . Using a high - character gasoline from a reputable gas station is always a wise choice to maintain the performance of your push mower ’s engine .

Caroline Bates