3.8 V-6 Gas Mileage November 07, 2005, 01:10:47 AM What is the best gas mileage you can squeeze out of these v-6's? Quote Selected
3.8 V-6 Gas Mileage Reply #1 – November 07, 2005, 04:03:00 AM what year? With about 60/40 city/highway I can hit about 25. If you drive it good you should be able to get beter. Quote Selected
3.8 V-6 Gas Mileage Reply #2 – November 07, 2005, 08:22:19 AM Mine gets an 'instant mpg' on the highway(70 mph) of over 30 mpg. The highest overall avg mileage I've gotten is 28.3, and that was on a 130 mile trip, with only about 5 miles of city driving. With a typical mix of hwy/city, the 'avg mpg' hovers around 21-22. I just purchased this car, but that seems like a pretty good mileage to me, considering the relative size, weight and unaerodynamics of the car. I have a 92 Cutlass Ciera (3.3 liter V-6)that only gets 26 hwy, and about 18 city. My Mark VII LSC gets about 20 city, 28-30 hwy (both 'instant mileage'), but I can average about 26-28 mpg 'avg mpg' on the hwy with a lot of cruise control at about 75 mph or so. It gets about 20 avg in the city. This is my first 3.8 liter in a Fox-body, and I am pleasantly surprised at the good performance and mileage of the thing. Yee-haw! Quote Selected
3.8 V-6 Gas Mileage Reply #3 – November 07, 2005, 02:41:01 PM Dude ya gotta tell us which year the car is. CFI or SEFI? Foxbody like your Mark VII or the MN-12? Ya know, its really cool to see my Lincolnsonline crew crossover to the "darkside" and get a Cougar. Quote Selected
3.8 V-6 Gas Mileage Reply #4 – November 07, 2005, 03:13:14 PM Some pretty decent numbers. However, I have an 83 with the carb'd 3.8. What kind of mileage can be had from that anemic engine? Quote Selected
3.8 V-6 Gas Mileage Reply #5 – November 07, 2005, 03:27:42 PM My '87 T-bird w/AOD gets ~25-26 on the interstate doing 70mph. It gets ~19-21 in mixed traffic conditions. It has 230,000 miles. My '85 Cougar w/C5 got around 17/22. I drive like a grand-ma. Quote Selected
3.8 V-6 Gas Mileage Reply #6 – November 07, 2005, 03:37:01 PM When my car was running, was 22 at Highway at 96 km/h, and in city was 17 . My car was an 85 with a carb and C5.... Quote Selected
3.8 V-6 Gas Mileage Reply #7 – November 07, 2005, 04:02:13 PM Mines a 5.0 but ide really hate to tell you my gas milage Quote Selected
3.8 V-6 Gas Mileage Reply #8 – November 09, 2005, 07:46:59 AM Quote from: pro-five-ohDude ya gotta tell us which year the car is. CFI or SEFI? Foxbody like your Mark VII or the MN-12? Sorry..It's an '88 LS with the 3.8. I am very surprised at the performance and mileage of the thing! Quote Selected
3.8 V-6 Gas Mileage Reply #9 – November 09, 2005, 12:09:53 PM I have an 88 as well. There is a fair differnce from the CFI to the SEFI, power and fuel mileage wise. Quote Selected
3.8 V-6 Gas Mileage Reply #10 – November 09, 2005, 12:28:38 PM Quote from: pro-five-ohDude ya gotta tell us which year the car is. CFI or SEFI? Since its alrady established he has a '88 it is neither, but instead EFI. Meaning it uses the batch fire system like the trucks that fire multiple injectors at once, not the Sequential EFI(SEFI) the 5.0 car engines use. The Turbo Coupes also use the EFI system, hence the badges on the '83-'84 models.OK schools out... Quote Selected
3.8 V-6 Gas Mileage Reply #11 – November 09, 2005, 06:51:00 PM Quote from: TurboCoupe50Since its alrady established he has a '88 it is neither, but instead EFI. Meaning it uses the batch fire system like the trucks that fire multiple injectors at once, not the Sequential EFI(SEFI) the 5.0 car engines use. The Turbo Coupes also use the EFI system, hence the badges on the '83-'84 models.OK schools out...I've been schooled, Quote Selected
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