What is the most fuel efficient mph speed for a 93 gmc safari 4.3 ?

Question

What is the most fuel efficient mph speed for a 93 gmc safari 4.3 ?

Answer 1

I also have this van. I find that 56mph is the absolute best speed and it's also a great van for kidnapping people.

Answer 2

I have the same van, and I did some calculateing because I was wondering it myself, and I found out if you want to get the best fuel economy you should drive it right around 55.   60 is ok to, but it uses slightly more gas.