5.3 miles per gallon...I've tried but can't make it better
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5.3 miles per gallon...I've tried but can't make it better
5.3L V8 that is...getting 16.5-17.5 max highway miles per gallon:
to anyone who may consider trying and I can help, here it is.
03 Yukon XL 4x4 that I did not buy for fuel efficiency, but have tried a few combos to try to stretch the gallon on the same 1000 mile round trip I make on a regular basis. I will say that w/ some dyno or software tuning these mods may help, but I don't have access so here's what didn't work.
-tornado air -no change with or without, had a free one to try thankfully
-gibson exhaust -no mileage benefit over stock, just got a headache
-magnaflow -ditto, but sounds worlds better than the god-awful gibson
-lucus "better mileage" additave, no benefit
-K&N Cold Air Intake -made the throttle snapier, but no mileage benefit
The only thing that helps...after spending too much money trying is MICHELIN LTX M/S regular load tires -least rolling resistance of any tire I'm aware of and NO 20's. Heck, I lost mileage going from the stocker 16s to the 05 17" take-offs, much less going to 20s. Get you a k&n drop in filter and call it a day.
I change the exhaust on everything I own...and have always without exception had an increase in power and mileage. The yukon had no mileage benefit whatsoever over the stock exhaust.
to anyone who may consider trying and I can help, here it is.
03 Yukon XL 4x4 that I did not buy for fuel efficiency, but have tried a few combos to try to stretch the gallon on the same 1000 mile round trip I make on a regular basis. I will say that w/ some dyno or software tuning these mods may help, but I don't have access so here's what didn't work.
-tornado air -no change with or without, had a free one to try thankfully
-gibson exhaust -no mileage benefit over stock, just got a headache
-magnaflow -ditto, but sounds worlds better than the god-awful gibson
-lucus "better mileage" additave, no benefit
-K&N Cold Air Intake -made the throttle snapier, but no mileage benefit
The only thing that helps...after spending too much money trying is MICHELIN LTX M/S regular load tires -least rolling resistance of any tire I'm aware of and NO 20's. Heck, I lost mileage going from the stocker 16s to the 05 17" take-offs, much less going to 20s. Get you a k&n drop in filter and call it a day.
I change the exhaust on everything I own...and have always without exception had an increase in power and mileage. The yukon had no mileage benefit whatsoever over the stock exhaust.
Last edited by alan2000T/A; 06-10-2008 at 11:38 AM.
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LOL. Wonder how many people you will confuse with the thread title and think that you are getting 5.3 mpg.
ps. Look into getting a custom tune.
ps. Look into getting a custom tune.
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consider a taller and narrower tire. Handling will be worse, but ride comfort and mileage should be improved. Pump them up just over the factory air pressure rating.
Consider a lower front airdam and blocking off part of the grille.
You've got a roof rack, right? Do you ever use it? If not, take it off. If so, move the cross supports all the way to the back.
Consider a lower front airdam and blocking off part of the grille.
You've got a roof rack, right? Do you ever use it? If not, take it off. If so, move the cross supports all the way to the back.
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Thanks for the comments, the bird is fun for sure! I kept up with Hunkins fairly regularly for years after I bought the car.
#9
this sounds lame i know, but I live in the country and was coming back from town the other night and was in no hurry at all, and was just gonna see how it turned out by driving no faster than 50mph. When i got home i checked my mpg and was gettin 28. Thats the best gas saving tip i got, even tho its so hard to do its ridiculous.
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this sounds lame i know, but I live in the country and was coming back from town the other night and was in no hurry at all, and was just gonna see how it turned out by driving no faster than 50mph. When i got home i checked my mpg and was gettin 28. Thats the best gas saving tip i got, even tho its so hard to do its ridiculous.
I know this gets discussed a lot, but there's always good info that surfaces.
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