Dear all,

Is it safe to use this new E10 fuel in my 1992 4.0 XJS?
I've had a look on the UK government website and it says all Jaguars from MY 1992 are compatible?
What do we do with older cars (like my 1966 S type) when the only fuel available is E10?

https://www.gov.uk/check-vehicle-e10-petrol

 

If it were my car I wouldn’t use it. I have a 91 V12 and only use e5 premium fuels. As to the future there are plenty on additives out there making e10 ok for older cars.
Rob.

 

Chris,

There's a difference between:

- Can your AJ6 engine run on E10?
- Are there any risks at all associated with storing and running E10 in your car which was made in 1992 and probably has a lot of original fuel components?

The answer to the first point is Yes. But the answer to the second point is also Yes.

You'll no doubt get differing views from people who are pro-ethanol in petrol, and those who aren't. The difficulty that you have is that it seems unlikely that E5 will continue to be retailed in Ireland.

If I were you, I would do 3 things:

- Use E5 for as long as it is available in Ireland. And if you can get Esso Synergy Supreme E5, use that as it has (should have) zero ethanol
- If you have to use E10, use a fuel additive / stabilizer which will assist with the water absorption difficulties.
- start to think about changing all the fuel hoses in the cars for ethanol-compatible hoses

Good luck

Paul

 

What does your owner's manual say? The manual for my 1985 says E10 is OK to use. I've been using E10 in my oldie Jags since the 1990s. I've not suffered any problems.


The easiest answer is avoid if it you can. Then you have nothing to think about !

If you'll have a problem with E10 it'll likely be from long term storage ....with the potential problems worsening greatly if the environment is damp.

If the cars are in regular use I wouldn't worry at all, personally.

Tons and tons and tons of archived discussion on this. Experiences vary greatly......so much that I often wonder what other variables are at play besides the absence or presence of ethanol.

I am not "pro" E10 by any means, mind you.

Cheers
DD

 

Thanks for the replies.
I've read a lot of the past posts and as Doug says experiences and views vary quite a lot.
I looked in the owners manual and again as Doug points out, page 271 of my XJS manual states;
''Fuels containing up to 10% Ethanol may be used....''

 

Ethanol may be used BUT - you absolutely MUST use the car regularly, ethanol does the damage when it stands idle, the hose standard whilst relevant will not stop the damage ethanol causes when water mixes with it - do stabilasers work I'd have to go with 'to some extent' is any ethanol based fuel suitable for storage absolutely not. If you must store a car with ethanol then do so in a temperature stable environment whilst in storage (kept mine in an outdoor carcoon until I took the car to bits) and then make sure the tank is kept full - this removes as much potential as possible due to natural breathing through vents etc as trhe air space is minimised.

Make sure any rubber is replaced, don't trust any E9 or other markings, and do your best to get low permeability hose such as Gates Barricade from a reputable supplier - this will also help with the stink in the boot / trunk.