my ford laser has been spluttering and stalling when i brake and back firing at high speeds all this goes away when i add a fuel cleaner additive could it be water in the tank i have been using the same fuel staion for a while.?

Hi there. Can we have some more info please?

1. How long has it been happening for?
2. Are you using fuel from Shell, BP, etc. or an independent seller?
3. When was your car tuned last?
4. Have you recently made any adjustment or alterations to the timing, etc?
5. Have you been using the same service station each time you fill up?

It's sounds like you have dud fuel.

I have seen water removing additive advertised around and I think this is funny. $8 or $9 for a bottle of colored metho? just put e10 petrol in next time you get fuel. Only need to do it once, unless you are faithfully sticking to your family petrol station who has been supplying you with water in your petrol for the last few years. 40 litres = 4 litres of alchol. If a litre of metho (alcohol) will get rid of water in your tank and system, wouldn't 4 litres or more get the water out even better?