Improve Fuel Economy

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KKKB

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Hello,
New to the forum and my KK. Curious if there is any consensus on ECU tunes to improve fuel economy. Performance is adequate for my needs (pull a 2000lb fishing boat), but wondered if there were any tunes out there that 1) worked 2) didn't screw up the engine and 3) weren't detectable by the dealer / factory. Appreciate any first hand knowledge out there

KKKB
 

KKKB

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Thanks

There are none for what you want.Keep up with your maintenance is about all you can do.

Bummer:(....... With the poor fuel economy I'd have thought an enterprising tuner out there would have done some "fiddling" with a/f ratios and timing to improve when needed. I just unloaded a Pontiac Solstice GXP that could be tuned for 50+ additional hp with the flip of a couple switches. Interesting to note, at a steady 55mph, also returned better fuel economy than factory tune
 

benny

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Well I can almost bet that if you can find a place that sells fuel with no ethanol in it you will gain about 1-2 MPG. I get mine from a local shell but I have to buy the 89 octane to get it. Ethanol and ethanol blends reduce your mileage.
 

Neb1373

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I have done some research on the hydrogen bubblers but decided against, the only thing you can do is regular maintenance and tire pressure. I keep mine at about 42 and have gotten 1-2 mpg, and also a light foot which may have helped that out a bit too.
 

benny

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I have done some research on the hydrogen bubblers but decided against, the only thing you can do is regular maintenance and tire pressure. I keep mine at about 42 and have gotten 1-2 mpg, and also a light foot which may have helped that out a bit too.

Increasing tire pressures will gain you a slight increase but it will also make your wheels break traction a lot easier. I sure wouldn't run them like that in wet conditions.
 

Miff_UK

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I have done some research on the hydrogen bubblers but decided against, the only thing you can do is regular maintenance and tire pressure. I keep mine at about 42 and have gotten 1-2 mpg, and also a light foot which may have helped that out a bit too.

Sorry, but amazingly, the tyre pressure trick is a myth. I always tried this on motorway driving but might not bother now :0(

http://www.popularmechanics.com/cars/news/4199963
 

Miff_UK

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Hello,
New to the forum and my KK. Curious if there is any consensus on ECU tunes to improve fuel economy. Performance is adequate for my needs (pull a 2000lb fishing boat), but wondered if there were any tunes out there that 1) worked 2) didn't screw up the engine and 3) weren't detectable by the dealer / factory. Appreciate any first hand knowledge out there

KKKB

Well,a friend of mine recommends chipping, (he's an auto electrician) so I have odered mine.

there seems to be a lot of forums where people have seen a difference, here's one

http://www.thewatchforum.co.uk/index.php?showtopic=31445

Don't forget, once you have spent your £300, it's only a £30 wiring harness/ map to refit to your next diesel.

I'll let you know how I get on

Miff
 

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