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        General >> Problems >> Dodgy petrol
        
(Message started by: gemeg22171 on Oct 4^th, 2007, 11:37pm)

Title: Dodgy petrol
Post by gemeg22171 on Oct 4^th, 2007, 11:37pm

Hi all, Three days ago I (STUPIDLY) put 40lts of tesco petrol in the scorpio. Since then mpg down from 29 to 25 and the gear box has started 'hunting' real smooth before. Could the petrol have this effect on the GB? Would filling up with 97 oct make any difference, perhaps by strengthening the rubbish still in the tank? :-[ @

Title: Re: Dodgy petrol
Post by Highlander on Oct 5^th, 2007, 2:39pm

I would doubt its the petrol, can you get an OBD scan done?

Cleaning the MAF might help to start with (if its not a 12v ):)

Title: Re: Dodgy petrol
Post by taliban aka Cheekyboy2 on Oct 5^th, 2007, 7:24pm

petrol wont affect the gearbox....

Title: Re: Dodgy petrol
Post by a900one on Oct 7^th, 2007, 7:03pm

Tesco sell super unleaded at some stations which seems good. but I have never had a problem with supermarket fuel.

Title: Re: Dodgy petrol
Post by jonnycab on Oct 7^th, 2007, 7:17pm

I occasionally (usually after shopping when you get 5p a litre off) fill up with Tesco 99 octane petrol & I reckon it's good stuff ;)

Never been tempted to buy their 95 octane petrol though ;)

Title: Re: Dodgy petrol
Post by gemeg22171 on Oct 10^th, 2007, 11:37pm

It is a twelve valve so no MAF. I did get the 95 oct. I used up the petrol - long steady drive on m/way, engine rough losing power, I think causing the GB problem, MPG down to 24. Filled right up, almost immediate improvement in power. GB now OK and MPG back over 28. Slim chance not dodgy petrol - but I know what I think. ;D

Title: Re: Dodgy petrol
Post by joe-satch on Oct 11^th, 2007, 6:07pm

i would just like to say that since a problem that i had with petrol from tescos some years back.....i have never put petrol from tescos in any of my cars since.regards den.

Title: Re: Dodgy petrol
Post by cuzza on Oct 11^th, 2007, 9:26pm

I work near seal sand ....theres a petrolum plant there and all the supermarkets get there petrol from there ....tescos, morrisons ,asda, sainsburys ...all of them,more likely to be condensation in the filling station tanks or a contamination in the supply tanker ...ie not cleaned correctly from last... load it could have been carrying chemicals or anything, happens more often than you would think .... :o ::)

Title: Re: Dodgy petrol
Post by joe-satch on Oct 12^th, 2007, 5:21pm

hi.yes thats a fair statement...does tend to put you off buying from tescos again though,regards den.

Title: Re: Dodgy petrol
Post by cuzza on Oct 16^th, 2007, 10:01pm

its only supermarket petrol from here ....not brand name stuff ..ie shell,phillips

Title: Thermostat
Post by ChrisF on Oct 18^th, 2007, 8:19pm

Is the thermostat difficult to replace

Title: Re: Thermostat
Post by peteHull on Oct 18^th, 2007, 8:35pm

on 10/18/07 at 20:19:25, ChrisF wrote:

Is the thermostat difficult to replace

No, its really easy but be carefull as the housing is plastic, held on by 3 10mm bolts, no gasket....

hth
pete