Fuel ?

[Gary2008]

Good evening,

I know this topic has been discussed before but if somebody could explain to me in simple terms it would be appreciated.

I filled my Jag up with supermarket diesel before I found out the car would run better on named brand fuel.

Now I am due to fill up again and would like to know what the difference is and how the named brand is better.

I got 32mpg on this tank of fuel which is more than I expected to get with the big cat. I travel 50 miles a day consisting of 36 miles motorway and 14 miles a roads/town centre traffic.

Thanks for listening ,

Gary.

[Old Peter]

Hi Gary,

 

I am advised that the branded fuel, Shell, Esso, BP etc has various additives that suit performance engines whereas supermarket fuel has not.  Some drivers put various additives in the fuel themselves.

 

I am assuming at your car is powered by the 2.7 diesel as is mine in which I got 53 mpg on a mixed roads drive of almost 100 miles in which the motorway was speed limited to 50 mph.  The return journey showed 49 mph when I was able to give the car a bit more speed.

 

Regards,

 

Peter.

[Gary2008]

Hi Peter ,

Thanks for explaining that for me. I will fill up tonight at my local shell station and let you know if my mpg improves.

Regards Gary.

[Gary2008]

Good morning Peter,

I've got question if you don't mind. My 2.7 diesel temp sits between 1/4 and 1/2 but I've read on the forum it should be on 1/2. Is this something that needs looking at ?

The cars runs fine and the heater is getting hot enough it seems.

Thanks for your time ,

Gary.

[Old Peter]

Hi Gary,

 

My temperature gauge sits on exactly half way, but I have had cars where the gauge sits about a third up.  I have had cars of the same make [11 Ford Escorts when I had company cars] and each one had a slight difference.

 

If the car is running well, and the climate control is working I would not worry too much about it.

 

Regards,

 

Peter.

[Gary2008]

Hi Peter ,

Thanks for the advice I will leave it until the next service then just have it checked then.

Regards ,

Gary.

[knightsmith]

Gary,

 

My XKR didn't even have a temperature gauge , so I wouldn't worry about it .

 

ATB,

 

Trevor

[Gary2008]

Hi Trevor , thanks for that appreciate you advice.

Gary.

[jampot]

I have a 3 ltr S Type and if I put normal unleaded fuel in it , the engine management light comes on, I forget the code but its something to do with emissions, clear the fault and put the good stuff in it and its ok.

[Gary2008]

Thanks very much for the info.

Gary.