anthonychacon80 said:Im guessing that there is something wrong. But if you think about it... in 1980 the national speed limit was 55mph. I am guessing you don't do 55mph and maybe average 65-70? That extra RPM will bring it down. I know the 260 D engine did not get as high milage as the 350. And according to Wikipedia they changed the designs a little in 81 and added internal EGR which took away about 5 horsepower.
Plus a diesel (or any Olds engine) will run forever in poor condition with who knows how many problems. Properly tuned and with the crud cleared out of the injectors (or whatever they used?) new lines, new filter, tighten the rockers, maybe replace the cam/lifters (see some OEM on ebay) and replace the head bolts with the ARP and gasket with the new Felpro and that engine should keep on running. Assuming they head gasket leak was not bad and tore up the inards and the bearings are shot. How hard is adding an aftermarket fuel seperater? And how does the low sulfer diesel they sell today compare to the diesel sold in 1980? Would the car smell as much? My Jetta TDI does not smell like a diesel at all. In fact the air coming out of the tailpipe is sometimes cleaner than the surrounding air and there is NO soot at all in the tailpiple. It really is a "clean diesel!"
Well my cutlass is a no option car, Im was lucky to have a/c. But I deleted it. The car is gutted with only camaro bucket seats in the interior,. So Im probably 500 lbs lighter then the avg cutlass. I gained that 5 hp back when I put and electric fan, deleted the a/c, and dual snorkel aircleaner. Also have aluminum rims, rear wheels are 28" tall, aluminum drums, aluminum driveshift. Its still a dog and low 20's mpg if that. With 2.14 gear and 130hp its horrible. But runs like a champ. Being why I havent brought myself to removing it yet.
I still dont believe 40mpg from an 3800lbs box car. Unless it was downhill the whole way. Not really worth debating. But if my car got 40 mpg. The jetta with new technology and being a 4 banger should get 60mpg. IMO. I just dont believe it. Wiki isnt facts. Just wrote by ppls, probably same ppls who wrote 442.com. One day I will get my gps for some accurate mileage and try and do an avg mpg on my car. And try and get some accurate numbers
I daily this car, to my work it 30mins. Its 55mph the whole way with 5 stop signs. I have