Test Run

[Jeepster19]

Making a trip today in my xj up to winston-salem n.c.!I have done a major tune-up and a complete new cooling system upgrade.I hope my xj gets alot better mileage than it gets in town,last time I got 17.7mpg on the open road!Not to bad for 145k,but I hope to best that today!Oh,almost forgot!I installed a cold air kit from k&n,part#57-1518.I'll let you guys know when I get back!

[BlueXJ]

Keep us informed as to how those improvements help the old MPG thing. My guess is not much of an effect, but I have been wrong a time or two.

[Jeepster19]

I made it back from winston-salem n.c.Mileage was 17.85 mpg with the a/c on running about 70mph,my foot was in it from time to time.I don't think thats to bad.On the previous trip I was running between 75 and 80 mph with no a/c and it was 17.7mpg.I will have another milage update later this evening because my girlfriend drove back because I couldnt drive due to my surgery.I'm excited to find out what it is!My hi-flow catalytic converter came in with my magn-flow cat-back system while I was gone.I will have that installed before the week is out,sweet!!!

[Jeepster19]

Your most welcome!I had the magna-flow cat-back exhaust system installed today with a new high-flow converter!It is a top of the line system and looks and sounds great!Curious to see what the difference in mileage will be with the new system,I will keep everyone posted.

[Mudderoy]

It will go down.

You like the sound the muffler makes so you'll press on the gas pedal more.

[Jeepster19]

Your probably right!It feels smoother going down the interstate,was going 80 and didn't realize it!Only time will tell with the mileage,any tips to increase mileage?

[Melissa]

Don't do 80

[BlueXJ]

Only go downhill.

[bwebb]

Put tacks on the gas pedal and drive barefoot.
MPG will improve greatly