• Hi Guest!
    If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

BJ8 - what's your MPG?

Share this page

AUSMHLY

AUSMHLY

Yoda
Country flag
Offline
What are our BJ8's suppose to get for gas milage?
I've been told somewhere between 17-21 mpg?
Did any of the Healey material mention what estimated mpg should be?
 
For the foreseeable future, my gage is 90° counterclockwise from the photo :cryin:
 
I've never seen Austin Healey-supplied material that talks about mileage. Our cars were sold during a time of 25 cents/gallon gas. It certainly wasn't mandated back then.
I don't drive the car enough to accurately determine city vs hwy mileage. But my overall combined mileage is about 18 mpg. Since I only fill the tank every third month mileage isn't a prime concern for me with the Healey or the Jag.
But, having said that, I'm planning a 1,500 mile road trip in Sept with the E-type. Fuel is a significant budget item for that!
Randy
 
AUSMHLY said:
What are our BJ8's suppose to get for gas milage?
I've been told somewhere between 17-21 mpg?
Did any of the Healey material mention what estimated mpg should be?
Click to expand...
I don't use MPG but instead I use FPG, "fun per gallon". I get the best FPG!
Patrick
 
According to a Road & Track road test, the normal range fuel consumption is between 15/21 mpg. The R&T data was included in Glenn’s Austin Healey Repair and Tune-up Guide, (Philadelphia: Chilton Book Co., 1965. Second printing May 1967) p. 40. The author, Harold T. Glenn, was a member of the Society of Automotive Engineers and a former Instructor for the Long Beach City Schools. He was also the author of several automotive repair guides.
 
The most accurate record keeping I did was my trip from Portland, Oregon to Lake Tahoe, Nevada for the Austin-Healey West Coast Meet a few years back. My '65 BJ8's total average gas mileage was 19 mpg. This included all manners of driving, freeways, city, down the hill to Reno, Sparks, back up the hill, around the lake etc. Car ran great it was a memorable trip for all.
 
I have just completed a 2300 mile trip in UK, Norway and Denmark at an average of 18 mpg (UK gallons)

It was a mixture of motorway driving at 3500rpm for 1,000 miles with the rest on minor roads at much slower speeds including lots of steep mountian passes and third gear roads.

This was slightly less than I expected, but I guess with long distance at 3500rpm with the roof down and a full load, it wasn't actually bad - just a big hit on the wallet!

Maccers
 
Over about 100K miles on my BJ8 I've gotten:
- 15mpg in town and windy mountain roads with lots of climbing
- 18-19mpg on the high/freeway at 70-75+mph
- slightly over 24mpg on highway at 55mph (mostly in Oregon)
 
Those cars were made back when the earth was young, the water was cooling, and dinosaurs roamed freely! :crazyeyes: One thing I always recommend to my customers to enhance better mileage is running Mobil 1 oil in the engine! I have documented substantial increases in mileage of my own cars, and have had the same feedback from some of my customers... one was a 2MPG increas in a guzzling Toyota 4-Runner. That's impressive! :winner1:
 
Sherman said:
Those cars were made back when the earth was young, the water was cooling, and dinosaurs roamed freely! :crazyeyes: One thing I always recommend to my customers to enhance better mileage is running Mobil 1 oil in the engine! I have documented substantial increases in mileage of my own cars, and have had the same feedback from some of my customers... one was a 2MPG increas in a guzzling Toyota 4-Runner. That's impressive! :winner1:
Click to expand...

My Corvette C5 runs Mobil 1 from the factory (from where I picked it up) and that's all I ever put in it. 400 HP and 32MPG on the highway (of course it also is very light for its size and very aerodynamic, with a very tall 6th gear. (I also drive like a little old lady)
 
Back when I went to GM training school in Deer Park, Texas, We had a class on fuel efficiency taught by one of GM's visiting engineers. (He flew in from Dearborn)...His main focus was on reduced friction combined with volumetric efficiency. I remember him stating back then that a day would soon come where high performance vehicles like your Corvette would have their cake and eat it too regarding performance AND fuel economy. Your corvette is a world-class automobile with engineering and developement normally limited to very high dollar exotics such as Labourghini, Ferrarri, Porsche, et. al. Interesting, too, how one can possess one for a song in comparison to the exotic price of it's european peers.

Mobil one is the oil in that car from the factory for many good reasons... none the least is the fact that GM, Ford,etc... all have billions of dollars in research and developement investment. I.E. They know more than we peons!

So... digressing to another point.... why does it come with glycol brake fluid? :eeek:
 
Years ago when I had A 100/6 with a rebuilt engine - 13 around town 23 on a run.

With the BJ7, around 25 on a run mostly dual carriageway, around town - who's counting?

Bob

PS - burning oil at the rate of 1 pint in less than 100 miles - due for a rebore any year now.
 
I will pipe in to add that the 4 cylinder big healeys did a little better, I got into the high 20s on the highway with the Hundred on the highway after the motor rebuild. Greg
 
Back
Top