Cheap supermarket petrol

[Bam Bam]

Does anyone use/trust the cheap supermarket petrol in their boat? I prefer to use Shell or Total as they seem to be better quality than the cheap chemically blended stuff from the likes of Asda or Tesco etc and I get more MPG out of the car and feel confident using it in the boat rather than the supermarket stuff. I have a Tesco petrol station within a minutes drive but I don't quite trust putting the cheap unleaded in the boat tank. Has anyone used the higher octane super unleaded available from supermarkets and would it be ok for running an outboard?

[Polwart]

Originally Posted by Bam Bam

Does anyone use/trust the cheap supermarket petrol in their boat? I prefer to use Shell or Total as they seem to be better quality than the cheap chemically blended stuff from the likes of Asda or Tesco etc and I get more MPG out of the car and feel confident using it in the boat rather than the supermarket stuff. I have a Tesco petrol station within a minutes drive but I don't quite trust putting the cheap unleaded in the boat tank. Has anyone used the higher octane super unleaded available from supermarkets and would it be ok for running an outboard?

the ordinary "cheap stuff" from the supermarket will be fine, especially in a simple 40HP engine... ...americans run their boats (and their cars) on stuff much poorer than a UK supermarket sells.

In fact supermarket fuel which is turning over regularly becuase of high customer levels will possibly be better than "stale" dockside fuel in many places.

[HUMBER P4VWL]

Used all sorts, never noticed any difference.

[DJL]

I filled my last boat up with what must have been 1000's of litres of Tesco petrol and never had any problems. That was a Merc 60 EFI 4-stroke.

New boat lives in a marina which makes getting to Tesco tricky.

My car hates Tesco diesel though, lumpy running and difficult to start. Runs perfectly on Shell or BP diesel.

[Nos4r2]

Odd, seeing as it all comes from the same refineries and storage depots...

[Andy B]

im waiting for LIDL and ALDI to start selling fuel

[chewy]

Originally Posted by Nos4r2

Odd, seeing as it all comes from the same refineries and storage depots...

Depends what additives have been put in.
I know the "city diesel" can make some cars run lumpy and the Ultra low sulphur fuel isn't great for lubricating pumps etc. On the diesel cars I've had I added a bit of 2 stroke oil as it acts as a cleaner and lubricant, runs quieter too.

Regards supermarket fuel and outboards you'll be fine. Tesco 99 was voted the best fuel for the price although in an outboard I doubt you'd tell any difference.

The super unleaded 97-99 Octane is aimed more at tuned cars where the ECU is mapped for that fuel.

[Tim M]

Originally Posted by chewy

On the diesel cars I've had I added a bit of 2 stroke oil as it acts as a cleaner and lubricant, runs quieter too.

Interesting; you think it makes a real difference? I might try this in the disco

[Ian Austin]

Tesco fuel is supplied by Esso.

[chewy]

Originally Posted by Tim M

Interesting; you think it makes a real difference? I might try this in the disco

It did on the Audi I had. I run about 200:1, if you google it theys quite a bit on it.

Originally Posted by Ian Austin

Tesco fuel is supplied by Esso.

Esso only do a 97 Super Unleaded though.