Quote:
Originally Posted by TorqueDog
It's sluggish because it's a 1988 Cadillac Sedan Deville. It's meant to be a big couch on wheels and float you to speed rather than rush you.
As far as premium fuel goes, it is a waste of money in that car, and especially if she lives in Calgary. That engine is a 4.5L V8 with a 9.5:1 compression ratio.
- First reason, our altitude: air density is lower at these elevations, you aren't getting as big of a 'bang' in the combustion chamber.
- Second, the vast majority of gasoline in Canada (unless you seek out Ultra94 IIRC) is 10% ethanol blended, and ethanol has 25% less energy than pure petrol. Again, less energy in the bang.
Now, if it was a forced induction engine like a turbo? Sure. But that car will run just fine with the regular stuff. It probably just needs a tune-up; plugs and wires, ignition... and a reset of expectations that any 88 Cadillac will provide an exhilarating drive.  |
Only Shell 91 and Chevron 94 are ethanol free, Ultra94 is 10% Ethanol.
I wouldn't waste any money putting premium in a malaise era Cadillac. Those cars are junk.