What did you do to your XJ today? 1M Views

[Roler]

Originally Posted by Billnick

I don't reckon cruise control does anything for better fuel consumption. I've noticed that when I come to a slight hill I naturally leave my foot where it is and let 5 km/h wash off the speed, whereas with the C/C it tries to keep the speed at 100 and the pedal goes down to the floor a lot more than necessary to achieve this.

And this is why cruise control seems more fuel economic, but actually isn't

[oldon]

Originally Posted by ajs18s

I think an injector upgrade or swap is happening ASAP for me then, with all the intestate driving I have been doing I get about 470 ks out of a full tank. And that is using cruise control and sitting 100km/h.
Do we all use Premium fuel?

Haven't done the injector upgrade mate, that was with stock 170,000k injectors. Fuel is always Shell V-power, noticed a difference when I decided to use it after running the wifes Focus on it, because it would run rough on all other major brand fuels. Regards oldon.

[anthonygubbin]

Originally Posted by ajs18s

I think an injector upgrade or swap is happening ASAP for me then, with all the intestate driving I have been doing I get about 470 ks out of a full tank. And that is using cruise control and sitting 100km/h.
Do we all use Premium fuel?

I found I got better economy using 95 but the 95 had to come from Caltex. I used to get about 40-50 more km out of a tank using Vortex 95. I didn't really notice much diff going to 98.

Regards A

[anthonygubbin]

Originally Posted by Billnick

I don't reckon cruise control does anything for better fuel consumption. I've noticed that when I come to a slight hill I naturally leave my foot where it is and let 5 km/h wash off the speed, whereas with the C/C it tries to keep the speed at 100 and the pedal goes down to the floor a lot more than necessary to achieve this.

I found siting on 90kph gives the best economy on either 95 or gas. I did the Bathurst to Adelaide trip pretty cheap back a few years ago. Can't remember the cost but I had less than 90 bucks and maybe a tank of gas and 40L of usable petrol and I got over 1600km before I ran out of fuel completely. I did post it up a few years ago in "My New Pilgrimage" a thread I had on AJOR.

[rustynuts]

Drove my XJ to my sisters house today for a pre Christmas lunch. Driving on the freeway all was good till the traffic slowed to a crawl on the F3. 35 degrees with the AC on. As I crawled along my temp "spiked" from just over half to into the red. It happened in an instant. As I continued and my speed picked up the temp came down within a minute. WTF. No further problems.
I checked my coolant at my sisters as I was leaving and all was full. Couldn't even get a burp out of it. Very strange. Any ideas?
Then when I was nearly home an old lady ran up the back of me. Her front fender hit me right on the corner of my rear bumper. A big ding in her car but no damage to mine.

[junglejuice]

Originally Posted by ajs18s

I think an injector upgrade or swap is happening ASAP for me then, with all the intestate driving I have been doing I get about 470 ks out of a full tank. And that is using cruise control and sitting 100km/h.
Do we all use Premium fuel?

You should be able to get better then that, be aware that your tyres are a little larger then stock so that'll throw it out a few % but not too major, I can get over 1000kms out of mine on a tank, a stockish 96 should be able to get 600ish from a tank on the highway at 100km/h without too much trouble...

[ajs18s]

Is there a way of telling if a vehicle is running to rich?
Going back a bit I know but before ULP if your tail pipe was black it was running to rich. I have replaced plugs,Leads rotor and cap in the last 12 months so the next thing was injectors.