Petrol storage

pathfinderstu

Well-Known Member
Joined
10 Sep 2011
Messages
401
Visit site
Probably been asked many times before but is there an sedative you can use in your petrol tank overwinter to keep petrol stable.... am thinking about an onboard tank of about 200 litres.
 
I usually store about 15 gallons of petrol over a winter on the boat and have never had any problems BUT this is a good post as things are now changing with 5% bio and soon to be 10% in the future.
 
Petrol doesn’t like heat. The “Lights” vaporise and reduce the Octane rating. Never a great idea to use last years petrol. Save it for the lawn mower.
 
Petrol doesn’t like heat. The “Lights” vaporise and reduce the Octane rating. Never a great idea to use last years petrol. Save it for the lawn mower.

The difficulty there is that I have a two stroke outboard and a four stroke lawn mower :(
 
Personally I wouldn’t even attempt to remove 2 litres of petrol from on onboard tank ... let alone 200 litres without specialist help.
If the petrol has no “snake oil” additives then Quicksilver supplies a Fuel Stabiliser that I have used successfully.
However with Ethanol blends now commonplace I use Startron Fuel Treatment after each fuel “top up”. You can initially use Starton as fuel winter storage by doubling the dose.
I cannot say for any certainty that any of these additives are beneficial, but I have never had any problems starting and running after the winter storage so I will continue to use them.
If you are concerned and you have high performance engines that rely on consistent levels of octane, you can add an octane boost treatment in the spring or just put in a few litres of higher octane fuel to start with as a top ups.
 
Top