19 posts - 10 authors - Last post: Jun 2, 20104.8 vs 5.3 Chevy Engines General Discussion. . The 4.8l gave me about 22.4 - 22.7 mpg on a regular week long trip, I haven't been on a .

10 posts - 3 authors - Last post: Mar 10, 2010I have a 08 4.8 silverado. Who makes a supercharger for this? and .

2 posts - 2 authors - Last post: Sep 18, 2005If gas is your concern then consider that discrepancy in MPG due to motor size pales in comparison to how much your driving habits effect it .

27 posts - 18 authors(2002 & 2004) Chevy Z-71 1500 Silverado Ext Cabs with the 5.3l V-8s both hit over 20 mpg during summer trips. My best was nearly 21 mpg. .

11 posts - 8 authors - Last post: Jan 24, 2008It seems like it's very random and not too dependent on the 4.8 vs 5.3 but more on who put that together and if it was on Friday at 2:30. .

15 posts - 12 authors - Last post: Oct 9, 2009I've also driven the 4.8 and prefer the 5.3's extra exceleration power. . on a 4.8L and it gets better MPG. i'd probably go with that. .

10 posts - 10 authors - Last post: Jan 28Chevy 4.8 L VS. 5.3 L Trucks/Towing/Trailering Forum. . Go with the 5.3 .

14 posts - 11 authors - Last post: Mar 5, 2008RE: 4.8 vs 5.3 - Tuesday, March 04, 2008 3:56 PM. I've got a 2000 Z-71, and I get over 16 MPG. All I've got is a K&N filter and a flowmaster .

18 posts - 17 authors - Last post: Dec 28, 2010[Archive] Chevy 4.8L VS 5.3L TTMB. . only 47 k miles. the best mileage to .

Nov 8, 2006 . chevy with 4.8 vs 5.3 Trailers and Towing. . mileage while towing is actually @1.5 to 2 mpg better with the 5.3… about the same otherwise. .

2 posts - 2 authors - Last post: Feb 17, 2008Why doesn't GM offer cylinder deactivation on the 4.8 as well as the 5.3. A 20% increase could make 24 mpg possible. .

10 posts - 9 authors - Last post: Jul 8, 20104.8 vs 5.3 NNBS? Performance. . I have a 4.8 with 26 inch wheels and I .

19 posts - 11 authors - Last post: 5 days agoSilverado 1500 Classic 4.8L (Regular), Sierra 1500 5.3L (Regular), F150 4.6L ( Regular) . .. Pros: 18-21 mpg on the highway; 14-16 in town; .

I think GM puts in those gears for better hwy mpg. I don't think there is much mpg diff 4.8 vs 5.3, I think window stickers were maybe 1 mpg better city. .

10 posts - 10 authors - Last post: Jun 24, 2003I have both the 4.8 and the 5.3. The 4.8 is slower than the 5.3, but the .

10 posts - 8 authors - Last post: Apr 8, 2000Silverado 4.8 vs. 5.3? discussion in the car forums by Edmunds.com. . the mileage on the interstate at 65 to 70 mph mileage is 21.1 mpg. .

20 posts - 9 authors - Last post: Jul 1, 2005Re: 4.3 vs 4.8 vs 5.3. a 4.3 1/2 ton pickup will get better MPG then a comprable 5.3l pickup. If you are all about MPG and don't tow .

11 posts - 7 authors - Last post: May 23I need to get the best mpg's possible..I need/want 5.3l--or should I lean . As far as the 4.8L vs. 5.3L, or what gearing you should get, .

56 posts - 22 authors - Last post: Jan 19, 20085.3's and 4.8's with the same configuration, on a fullsize truck, get .

9 posts - 8 authors - Last post: May 8, 2008The same cannot be said for the 5.3/4.8 vs. the 4.3 six cylinder. . I have a 2005 k1500 with the 4.8 I get around 17 mpg. but I live in .

4.8 for 3 mpg higher but 50 less horses and 5.3 with 3 less mpg but 50 more horses. . What is the wheel base for a long vs a standard bed Chevy pick up .

15 posts - 12 authors - Last post: Oct 9, 2009GM 4.8 vs. 5.3. I know very little about trucks. . of oomph a bit sooner than the 5.3. the 4.8 will return a bit better mpg but, not much. .

Automotive Forums .com Car Chat > Chevrolet > Avalanche | C&K | Silverado .

32 posts - 14 authors - Last post: May 6, 2009[Archive] 4.8 vs 5.3 GM Gassers. . haul things in the bed and or empty highway , then I would look at the 4.8 to tweek a little more MPG. .

12 posts - 11 authors - Last post: Sep 18, 2005Sounds like the 5.3w/4WD is a tad better than the 5.7 and the 4.8w/2WD may get me another 1 or 2 mpg at best, decisions. .

19 posts - 19 authors - Last post: Nov 26, 2005my friend is lookin at getting a nbs 4wd and is wondering what the mpg is on the 4.8 and 5.3 so post up what you get no matter if its stock .

10 posts - 6 authors - Last post: Jun 12, 2010Many people are finding out the 4.8 is faster in the top end then the 5.3. Same goes for the 6.0 vs 8.1, 8.1's a torque monster but requires .

10 posts - 8 authors - Last post: Jun 23, 2003If you want mpg's go with the 4.3 V-6, if you want a V-8 get the 5.3. . I don' t know about the 4.8 but I can tell you this on our 5.3 .

10 posts - 8 authors - Last post: Jan 5, 2010Hello, I'm new here. In the process of trying to purchase a 2005 or 2006 Chevy Tahoe. Tahoes with 5.3 engine harder to find with lower .

20 posts - 11 authors - Last post: Feb 28, 2006Re: 4.8 vs 5.3. Quote Originally Posted by Blaze5509. I get 18-21 mpg in my .

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14 posts - 11 authors - Last post: Mar 5, 2008RE: 4.8 vs 5.3 Tuesday, March 04, 2008 3:56 PM (permalink). I've got a 2000 .

20 posts - 13 authorsPage 2- Smaller V8 Pickups (4.8 vs. 5.3 etc.) and tow rig questions Tow rigs . 4 more mpg from a vehicle with 50% more mass and more wind drag isnt going .

GM 4.8 vs. 5.3. 10-08-2009 08:11 PM #1. I know very little about trucks. . a bit sooner than the 5.3. the 4.8 will return a bit better mpg but, not much. .

Sep 26, 2007 . Vortec 4.3 liter V6; Vortec 4.8 liter V8; Vortec 5.3 liter V8 . .. a whopping 11 mpg. i'm very dissapointed! i wouldve went with a v-8 if i .

10 posts - 8 authors - Last post: Apr 27, 2007My wife has an '02 Avalanche with the 5.3L and that is a sweet motor/truck. . . the 4.8 gets a tad better mpg..but towing. I'd want a 5.3 .

Jan 13, 2011 . In regard to the new Truck V-8's I would either do the 5.3 or 6.0 . Ok, any one running the 5.3 getting around 20 mpg or is this a myth? .

16 posts - 10 authors - Last post: Jan 19, 2008Re: 4.8 vs. 5.3? My old 94 350 TBI with 3.42s gets 18 mpg so I do believe a .

10 posts - 5 authors - Last post: Mar 20, 2010i've driven a few 4.8L's in my day and even with light towing, . and you better have a turbo diesel unless you want 8 mpg and a tranny after 50k. . I think the 5.3 gets better mileage than the 4.8 The 5.3 in 09 cuts .

10 posts - 9 authors - Last post: Nov 8, 2000Is there a noticible difference in the mpg between these two engines? .

Oct 21, 2010 . GMT900 Platform: 4.8 vs 5.3 Off Topic. . the good news is I get 16.8mpg despite this with AFM. the bad? I get 16.8 on the highway too. .

26 posts - 17 authors - Last post: Aug 4, 2009. read (I just bought it and was debating the 4.8 vs 5.3 as well) the MPGs .

Apr 17, 2011 . 4.8L vs. 5.3L - Anyone have any opinions on Chevy Silverado 1500 4.8L . seems like the mpg they are quoting for 96 is way off base. i'm .

16 posts - 14 authors - Last post: Feb 8[Archive] Chevy 4.8 L VS. 5.3 L Trucks/Towing/Trailering Forum. . If I cruise in the 75 MPH range I will get around 18 MPG running empty. .

10 posts - 7 authors - Last post: Jan 5, 2010New to forum question re:mpg 4.8 vs. 5.3 General Discussion. . I was wondering how great the difference is for mpg with 4.8 and 5.3 .

15 posts - 12 authors - Last post: Feb 22, 2008There's not really a MPG difference due to the AFM (v4/v8 mode) being in the 5.3 but not the 4.8. I'd go with the 5.3. .

8 posts - 8 authors - Last post: Apr 8, 20074.8L vs. 5.3L Silverado Car Forums. . I have an 02 4.8. With 255/75/16's I got around 18-20 mpg hwy. With 265/75/16 BFG A/T's I get 14-15 .

10 posts - 9 authors - Last post: Jun 12, 20104.8L vs 5.3L The Lounge. . Join Date: May 2010. Posts: 12. Default. Both .

10 posts - 2 authors - Last post: Mar 9, 2010The only diff is he has a 5.3 and makes 15 mpg and i make 12 in the city. . 4.8 vs 5.3 questions. So seeing as im basically new to this .

9 posts - 8 authors - Last post: Mar 20, 2001The 4.8 is more of a revver than the 5.3, shorter stroke. . I am getting about 17.5 mpg over all, seems to be gradually getting better. .

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