post #16 of Old 03-14-2011, 04:22 PM
work4mud
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2003 TJ Wrangler 
 
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Sure fire way to make your tank of gas last longer....drive your jeep less often.


FOR SALE: 2003 Jeep Wrangler X. 4.0L I6 with 38k original miles, Auto trans, 4" suspension 1" body lift, 35x12.50r15 BF Goodrich KM2's. Hard Top, Full Doors, fullsize spare tons more to list.
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post #17 of Old 03-17-2011, 07:28 AM
grininmonkey
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2004 TJ Wrangler 
 
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Location: Lake City, SC
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I have just recently found that having equal tire pressure in all 4, correct wheel alignment and correct rear drive shaft angle shot me up from 14.2 mpg on average of 18.7 mpg (city + highway).

I had a some what noticeable vibes with a budget lift and an at home alignment until recently, where I put in new coils,shocks and lowered my transfer case to correct my drive line... then I caved in and had a shop set my toe-in to 13 or basically between 0 and 1/8" toe-in.

The entire driving experience was very noticeable and it was apparent that I had bad drive line conditions and alignment that was causing my engine to work a little harder than it should have been :-)
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post #18 of Old 03-17-2011, 08:30 AM
duffer
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18 isn't bad and I doubt any tuning with that new a vehicle will really gain much. A tire change can make a difference:
http://www.fourwheeler.com/techartic...omy/index.html
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post #19 of Old 05-18-2011, 05:13 AM
guruleenyc
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1999 TJ Wrangler 
 
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Do these throttle body spacers work as advertised by claiming 1-4 miles additional per gallon, which are also reviewed on these major 4x4 sites...?

Ordered one at Advanced, not sure if I will follow through....

Please advise fellow enthusiasts.
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post #20 of Old 05-18-2011, 05:15 AM
D3f4ult
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2004 TJ Wrangler 
 
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Location: GA
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TBS and CAI are very arguable about there improvements, if any.

I will say I change my spark plugs after 60k (the PO never did it) for $15 and 20 minutes in the parking lot and I went from 15mpg to 17mpg.
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post #21 of Old 05-18-2011, 08:18 AM
Stinkbug
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According to the manufacturer's website these should do the trick (If it wasn't true they couldn't put it on the internet).

"Airtabs™ are patented, unique wishbone shaped vortex generators designed to increase vehicle aerodynamic performance and fuel economy by reducing aerodynamic pressure drag at two key locations..."

Unfortunately, one of those "key locations" is most likely your wallet. Thinner wallet = less weight and drag.
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post #22 of Old 05-18-2011, 08:38 AM
Jerry Bransford
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Quote:
Originally Posted by guruleenyc View Post
Do these throttle body spacers work as advertised by claiming 1-4 miles additional per gallon, which are also reviewed on these major 4x4 sites...?

Ordered one at Advanced, not sure if I will follow through....

Please advise fellow enthusiasts.
No, absolutely not. They do nothing when under the air-only type of throttle body modern Jeeps come with. Spacers can help when installed under carburetors and the older no-longer used throttle body injection (TBI) throttle bodies but a spacer will do absolutely nothing when under the TJ's type of throttle body.

Don't bother picking up the spacer when it comes in. If you already paid for it, cancel the order so you don't waste your $$$. Really.

Getting Savvy...

When you have a choice, buy American.
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