Thanks for the props guys.

Once I locate and install the 3:55 gears in the diff, Jerry and I think 50 mpg is a definite possibility.

Now all I have to do is find an old, not too wore out, 85 to 88 I Mark with a 1.5L Turbo gas engine that I can remove the gear set and carrier out of and it will be set.

Looks like I need to go get some pictures of the little fuel tank I built for the bio diesel conversion process.
It's a 3 gallon tank I will mount in the left rear corner of the trunk and it will plumb into the transfer valve mounted next to the fuel lines coming out of the main fuel tank. The little tank will be for the dino fuel and the wvo will go in the stock tank. Did I mention I picked up a NEW factory I Mark tank that I will be adding the water heater lines to? This way I can warm up the bio fuel before I switch from the small tank to the WVO fuel. It will also have a temp gauge sensor in it. I don't like welding on gas tanks that have had gasoline in them. So that's why I have a new one.
I'll get a picture of those after lunch to show you what's next on the mod list for this car.

Later.

Curtis