So, I was sitting behind the wheel, driving to work the other day, and thought about flipping the ol' A/B trip switch to see what kind of 'long term' mileage i was getting, based on the Shag computer. I mean after all, in a few months, prices of gas are expected to reach $4 a gallon, so perhaps I need a different, more fuel efficient car.
My rides stats: 2003 XK8 4.2L v-8
Engine mods: K&N air filter only
Other pertinent info: I only buy 93 octane, Shell/Mobil/Exxon/Texaco brand fuel. no wallmart, RaceTrack or stop n go gas for this car.
Also, I use full sythetic oil (5w30).
To the computer I went..well, not bad as it seems, not bad at all. Here is what is showed:
Mileage: 6400 miles
Average MPG: 23.1
Average MPH: 40.1
my reaction ->
Now, based on about every review i've seen on almost all Jaguar vehicles, they all pretty much say
17-18mpg City / 24 mpg Hwy So, I am thinking to myself, either my computer is lying to me, because this is pretty well balanced city/highway driving routine based on these last 6k miles, or it is true (i am such the optimist). I don't fill up as often as I used to with my gas-guzzlin 2000 Jeep Gr Cherokee (inline 6), which the computer displayed an average of
15-16 mpg <where's the puke icon> average after any given month of driving.
If this is truly the case, and I haven't 'calculated' an exact mileage / fuel quantity to check it, so going by comptuer only, I am really pleased to be getting that kind of mileage.
What is your current fuel mileage looking like, and let's say your computer needs to have
at least 3000 miles on it, and you have a mix of daily/highway driving. No trips to west/east coast and back, you'll throw off the curve.
Best Instant MPG
As it is in my formal training (as an engineer) I have strived to find that p e r f e c t speed, where I get the most optimum fuel mileage, again, based on what the shagputer tells me. (pathetic, yes..I know)
So, for the last 6 months or so, Ihave fiddled with the cruise control and tried different speeds as I passed across this 4 mile bridge, flat as all-get-out, in search of that magic number. What's yours? (please don't tell me that extra passengers, weight, fuel load affects this..yes I know, but try to avoid that type of thinking for awhile, k?
My best speed: 66 mph -> 28 - 30 mpg (you know how that computer jumps around, never staying on a single number that long)
Just provide your car info, any mods you may have (chips, exhaust, etc), your computer data, and of course, rationalize how great of a fuel saver you are/aren't. Maybe someone will pick up on some certain tips when it really counts...at the gas pump in in your wallet.
PS A jag tech can come along and crush my very dreams if they post that those computers are soo inaccurate, to not trust them for any type of fuel economy attempts.
post? Not all of them can be winners I suppose.
