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Post Info TOPIC: ARX in a Jaguar XK8...good results


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ARX in a Jaguar XK8...good results
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Having completed treatment and rinse phases in this car and now it's back running on fully synthetic Ii decided to track MPG variations on a regular drive.

I undertake this drive in identical test conditions (as I always leave late evening or early morning when it is cool and no traffic).

model year 96 (in the uS you say MY97) with a replacement engine in 2004
30k miles on new engine
External Temp = 5-10 degrees C
mileage distance = 350 (2 x 175)
duration of each leg = 3hrs 10 mins
Gasolene = 100 RON (super unleaded note in the USA I think that's 97.7 MON)
No stopping excepting at end of each 175 mile journey
Both cold starts (as I'm visiting my Mom I have to stay don't I!!biggrin)

Previously I was achieving 28.2-30.1 MPG and in the two most recent runs since the ARX treatmet I've achieved 33.4 MPG and 34.1 MPG

Now previously I thought I'd been getting good gas mileage for a 4ltr V8 but now with the increase averaging 4.5MPG (circa 15%) I reckon that's close to an extra 75 miles per tank.

I'm shortly to convert the Jag to run on LPG which should mean that I can do the same journey at half the cost.  UK super unleaded costs £1.04 UK per litre or $1.97 US so to fill up at this rate stateside would cost you circa $74 from empty (So think about paying $7.48 a gallon the next time you complain about gas prices!)

Note that to fill this car with UK gallons =16.5 which equates to 19.8 US gallons...nice to have something in the UK that's bigger than you have across the pond!! biggrin

Regards

Mark

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Ooops!! I didn't mean to post twice cry

Mark

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