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Where is the fuse box on a 1987 cadillac sadan deville.
No. 91 octane is the minimum. I notice a huge difference in the way a Cadillac runs on 87. I always put 93 octane in Cadillac Fuel systems.
Pull the fuel pump fuse.
87 should be sufficient and it will run on 87 but if you want the full potential of this engine then Cadillac recommends 91 octane premium fuel.
Yes
unleaded fuel graded above 87
The fuel pump is mounted on the side of the engine block near the front. Follow the fuel line from the carburetor and you will find it.
under the hood most likely if not in the fuse panel under the dash
Front of carb. Be careful taking it out as fittings are easy to strip the threads
87 Unleaded. But use 89 once in a while to keep the engine clean.
If there is a fuse on your model it is in the fuse block under the dash. My book only mentions one for the four cylinder model.
Some required 93 and some required 87, depends on model and year