LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Stock LT1 Fuel Mileage?

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Old 06-17-2006, 11:14 PM
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Default Stock LT1 Fuel Mileage?

What is the fuel economy for a stock LT1? I found a 1996 in really nice condition and I was wondering if I could use it for a daily driver.
Old 06-17-2006, 11:44 PM
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i use mine for a DD. but the factory specs for mine are 19/25... but i think its a little less than that now...
Old 06-17-2006, 11:52 PM
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Originally Posted by harvickgm
i use mine for a DD. but the factory specs for mine are 19/25... but i think its a little less than that now...

LOL. Yeah, I guess you could say yours might have changed a bit. Stock numbers aren't bad though.
Old 06-17-2006, 11:54 PM
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nah... you will love the car once you get it and learn more about it... they all have there problems... but im never getting rid of mine...
Old 06-18-2006, 12:05 AM
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i get 19 mixed highway/city with a moroso CAI and new muffler
Old 06-18-2006, 12:46 AM
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About 18-24.
Old 06-18-2006, 12:49 PM
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what kinda gas mileage you guys think an LT1 with a full exhaust (headers, cat, catback), ram air intake, and 3.23's would get??
Old 06-18-2006, 03:51 PM
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My girlfriends stock 94 with a CAI, A4 only pulls off about 14-15 city and 19-20 freeway, FWIW. 147,000 miles on it. Wish I could get better out of it, but so far nothing I've done has helped. It might need O2's...
Old 06-18-2006, 04:55 PM
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On the highway M6s can get 24-34 (depending on alot of things)...
Old 06-18-2006, 05:22 PM
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I've got full exhaust, CAI, and a madz28 tune w/ an A4 and 3.23s, I get mixed city/highway numbers of about 21-23 mpg week in and week out. I drive around 220 miles every week and check the mileage religiously, gets pretty good mileage for the performance IMO, its mpg is on par with alot of average V6 powered cars these days. This is around the metro atlanta area so there is a fair bit of traffic.

On straight extended highway runs I've gotten 27 ish mpg.
Old 06-18-2006, 05:38 PM
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I get around 18mpg city with an A4 and 2.73's. I got 130,000 on the clock.
Old 06-18-2006, 05:53 PM
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My vert with 32k, A4, and 2.73, has never got less than 20 MPG and never more than 30MPG. All of this is on 87 as well.
Old 06-18-2006, 06:07 PM
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I wish I could get no less than 20 from mine... I have an A4 with 3.73's and a tune and get 17-18 mixed city/highway. When I was still on the stock tune and with 2.73's I got about 15 even when I babied it everywhere for 200 plus miles. I guess mine really likes gas, since I have never gotten 20, even when it had 2.73's
Old 06-18-2006, 07:59 PM
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I just recently changed from 3.23s to 3.73s and noticed an INCREASE in gas mileage. On the freeway, I used to get 24-25 mpg without the AC running and about 23 with it running. Well, last week on a road trip with my new gears and the AC blasting going 75 I still netted about 24 mpg.
Old 06-18-2006, 08:12 PM
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what r u guys getting to a full tank?? i filled mine up and got 230 with 3g in the tank!
Old 06-18-2006, 09:30 PM
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I get about 290-310 on a full tank of gas. CAI, and exhaust
Old 06-19-2006, 02:35 AM
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Originally Posted by Nite_Hawk
I get about 290-310 on a full tank of gas. CAI, and exhaust
my last tank was 195 miles and i was on fumes when i pulled in
Old 06-19-2006, 11:35 PM
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Originally Posted by Nite_Hawk
I get about 290-310 on a full tank of gas. CAI, and exhaust
There is NO WAY you could get that kind of mileage. Our tanks only hold 15.5 gallons. Unless you have a different fuel tank or something (or an I-4 swap, hehe )
Old 06-20-2006, 12:34 AM
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I get about 13 on average, BEST i have ever seen was 15.9 mpg, with some serious sixth gear time, and NO hard running.
Old 06-20-2006, 12:34 AM
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Originally Posted by emj2006
There is NO WAY you could get that kind of mileage. Our tanks only hold 15.5 gallons. Unless you have a different fuel tank or something (or an I-4 swap, hehe )
it definitely is possible i've got a 94 with the m6 and have gotten 340 miles on a tank of gas with a few gallons to spare it was mostly highway i ended up averaging like 29 mpg

when you have the m6 if you keep your foot out of it its amazing the milage you can get but its hard to keep ur foot out of it for sure

otherwise with a mixture of highway and town i usually average about 250 miles per tank with plenty of fuel left i usually put in less than 11 gallons so that works out to be a shade over 20 mpg not bad if ya ask me


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