intermittent missing. (E10?)

[volvulus]

Hi all,

My 1991 940 2ltr non turbo estate has started missing again, I rebuilt the top end after the timing belt failure and put new Bosch leads on.

Engine ran perfectly for about 600 miles. (belt re tensioned at 550ish)

It's started missing again, as this occurred since using the E10 petrol, I wondered if anybody has had problems with it.

E10 petrol is supposed to be compatible with our engines.

Coincidence with fuel change or my plugs or new bosch leads already gone west?

Water in the tank (E10) ???

Thought I'd ask before changing components.

I had a go at the earth leads last week but made no improvement.

Thanks in advance Ken

[360beast]

One easy way to find out is to fill up with E5 and see what happens, I recommend Esso as if you check their website they say most of the country gets ethanol free 99 octane fuel, Tesco use Esso fuel but I'm not sure off the 99 at Tesco is ethanol free.

[volvulus]

Originally Posted by 360beast

One easy way to find out is to fill up with E5 and see what happens, I recommend Esso as if you check their website they say most of the country gets ethanol free 99 octane fuel, Tesco use Esso fuel but I'm not sure off the 99 at Tesco is ethanol free.

Thanks, Surprised I got a reply.... I posted it in the wanted section. Duh!

How do I put it in the general or where it's best suited? Can I do that or is it an admin task?

I will try the E5 when this tank is empty but if the E10 induces water in the tank the problem will still be there.

I generally use ESSO.

Ken.

[940volvoman]

Water in the petrol tank???

[volvulus]

Originally Posted by 940volvoman

Water in the petrol tank???

Hello volvoman,

Are you agreeing that water in the tank is the reason. I'm not sure what your reply means, sorry.

I wish I knew how to put this post in the general section.

I've ordered another set of spark plugs, if that doesn't fix it I'll see about removing the tank drain plug to look for water.

Is E10 compatible the red block engines?

Ken

[360beast]

Originally Posted by volvulus

Hello volvoman,

Are you agreeing that water in the tank is the reason. I'm not sure what your reply means, sorry.

I wish I knew how to put this post in the general section.

I've ordered another set of spark plugs, if that doesn't fix it I'll see about removing the tank drain plug to look for water.

Is E10 compatible the red block engines?

Ken

E10 is meant to be compatible but we are seeing a few posts about issues running on it, mine runs on it but I can tell it is much happier on 99 octane, yes water in the tank can also cause this issue. Dave (Laird Scooby) will be along shortly I'm sure to tell you what ratio of meths etc to use in the tank to clear it out if you don't fancy losing your fuel for it to potentially not be the fault.

[baggy798]

Adding meths to the tank was debunked here:

https://www.volvoforums.org.uk/showthread.php?t=313630

Originally Posted by from link

But it does clearly state that the product 'contains: ethanol > 95%', thereby proving my point that there is very little methanol in methylated spirits... you are actually suggesting adding ethanol to fix the problem of ethanol being added to petrol!!!

That's like taking more crack to ween yourself off of crack.