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Thread: 4.3 v6 fuel economy ?
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08-19-2009, 08:59 PM #1
4.3 v6 fuel economy ?
I'm interested in purchasing a 92 blazer(smaller s10 looking model) that has the 4.3. What would i expect the fuel economy to be, mainly interested in the hwy milage. would it be better than my ls1?
its also a 4x4 thanks
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08-19-2009, 09:10 PM #2
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4.3's don't get shit for mileage. Good power and they last forever though. Just 3/4th's of a 350. Defenitely not better than a stock ls1.
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08-19-2009, 09:14 PM #3
there is also a 2.8 im looking at in the same model. what about that one?
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08-19-2009, 09:19 PM #4
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08-19-2009, 09:29 PM #5
Buddy has a 96 Blazer 4.3. 279,000 miles and running strong. Gets around 17 - 18 hwy mpg
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08-19-2009, 09:31 PM #6
I had a 93 s-10 blaser 4 door and got 14mpg hwy. Biggest POS I even owned.
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08-19-2009, 09:36 PM #7
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08-19-2009, 09:53 PM #8
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08-19-2009, 09:56 PM #9
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08-19-2009, 09:58 PM #10
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You can boost the 4.3 too, ala Syclone
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08-19-2009, 10:01 PM #11
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08-20-2009, 12:04 AM #12
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Silver- 1998 Camaro Z28 A4
my girlfriend has a 93 explorer 4.0 v6, my camaro gets better mileage. as for the blazer 2.8: usually it should get about the same gas mileage. maybe even a bit worse, because you'll rev it higher for lack of power.
it's all the weight these cars are schlepping around.
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08-20-2009, 12:20 AM #13
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^yep, that's basically it. There gets to be a point where the bigger motor will get better mileage. I'd think this is one of those situations
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08-20-2009, 12:23 AM #14
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08-20-2009, 03:44 AM #15
SUV =/= Fuel efficiency.
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08-20-2009, 04:15 AM #16
i got a 97 blazer 4.3 gets maybe 16mpg on highway, its the biggest pile of crap i have ever owned also, constantly falling apart cant wait until its gone.
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08-20-2009, 04:38 AM #17
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yellow- 02 Collector Edition TA
I have a 94 S10, 4.3 CPI, lifted with 33's and 4.56s, I can get 19 all day long the highway with it. My brother has a 96 S10 ZR2, lifted on 32s with 4.56s and gets 21-22 mpg on the highway all day long.
His truck has 290,000 miles and mine has 398,000 miles, both have original engines and transmissions, neither of them touched. Best trucks ever made, people with problems had lemons or something.
Here's a pic, this is like a block going down the road and still pulls 19mpg.
My ls1 does however get 30-32mpg on the highway when i baby it.
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08-20-2009, 06:29 AM #18
the blazer's are piles of shit....period. We had a 94 that I worked on constantly. Ever done a fuel pump on one of those pieces of shit? Not fun. I've known several people that's had those blazers and they all had to work on them constantly.
The 4.3 isn't a bad motor...it's the rest of the thing that you have to work on. The 4.3's have gasket issues. The lower intake gaskets on just about all of them leak at some point. The distributor is also plastic so when you do a tune up and replace the cap and rotor remember that because it's very easy to strip or crack the mounting ears on the distributor where the cap mounts.
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08-20-2009, 06:32 AM #19
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08-20-2009, 07:12 AM #20
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