max miles per gallon?

[TonyC]

Well, the Suicides consistently were reported as never supposing to get better than 12 mpg--averaging about 10--according to any and every source material of the day that I've come across...save for the two-barrel years, which were reported to max out at 14 mpg, but I doubt they managed to do that on average. So the fact that I can make a net average of 13.5 to 14 mpg on Frankenstein--higher than the best possible mileage according to all the sources--is a proportionally significant improvement (I'm pretty sure my grand's Vitalizer has something to do with it, but so is to-spec tuning). Who knows what a full-blown rebuild would do...but I'm not aiming for that yet.

---Tony

UPDATE: During my vacation last month, I was given quite a surprise. I drove Frankenstein from Shreveport to Toledo and back, averaging 18 mpg the whole way--keeping a consistent 70 mph with the cruise control (when it worked--discovered the points were getting pitted which affected the CC's operation). Even with pitted points he was still doing 18 mpg. It's possible that bumping up a level on the octane scale--from 87 to 89--may have contributed, but a 49-year-old Suicide that sat dormant for 20 months? To me, that was amazing.

[GOldman Classics]

Like Al implied...... I drove from Toronto Canada to Atlanta GA. and averaged about 20-21 mpg. I was doing 60-65 mph though and not using cruise. I burned only premium fuel and YES, Al's help in tuning did make it run TONS better. These cars, once up at highway speed do pretty well on gas. I am sure in 1975 gas was a LOT cheaper and i'm sure you had a heavier foot than what you do now Jon

[Newbie68]

well, I haven't driven my 68 Lincoln with a 462 enough yet to see how much mpg I get. But right now in the warm weather, my 79 Thunderbird, which weighs around 6250 pounds with me and my stuf in it, that I DD, get's 21 mpg highway and about 11 mpg city. And that's with a 302 and 3 speed

[mr.niftie]

1976 L-M Price Book - Pages 4-5.pdf

I know I'm repsonding to a super old post but are there any more pages to this document or any other years?

[TonyC]

Holy heavyweight, Batman! You carry over 2,200 pounds of load in that T-Bird?? How does the suspension not buckle?

---Tony

[Newbie68]

Ha ha yeah, I actually thought that the door placard that says 5816 pounds was the weight of my car this whole time. I just found out today that GVWR is the max safe load that the car can handle

[TonyC]

You aren't the only one who made that mistake, so it's cool.

---Tony

[John Harbour]

My 1969 Lincoln Mark III with a 460 gets like 22 mpg. I put an AOD tranny on it and did minor engine work to increase MPG. If you want to increase MPG on a carbureted 460, one thing that can give a few percentile increase in MPG would be putting a frying pan screen under the carburetor-under the vacuum spacer plate. This causes the gasoline to disperse more evenly and burn more efficiently.

[lincolnmatthews]

The best I ever got with a 460 (71 Mark III) was back in about 78 from Salt Lake City to I believe Reno. It was about 500 miles & I drove a steady 55 MPH (a slow trip!) anyway I got 21 MPG . I typically got 12 MPG back & forth to work & about 16 on the hwy. A great car! I'm glad I ended up with my neighbors car, a 71 Mark with a sunroof, blk. exterior & white leather high back seats. A very nice car that I'm currently getting back on the road.