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They say to run premium but mine runs just fine on 87. I did get about 2 miles per gallon better mileage on premium but that's not enough to warrant the difference in cost.
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∙ 13y ago
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Where is oil drain plug on 1999 Cadillac deville?
Where is the oil dran plug on cadillac deville, 1999
Will a 1999 Cadillac DeVille radiator work in a 2000 Cadillac DeVille?
Will a 99 Cadillac deville radiator work in a 2000 Seville
How much air pressure should be in the tires of a 1999 Cadillac Deville?
Its the one that is stated on the owners manual...
Can you fit 23 inch rims fit on a 1999 Cadillac deville?
can you fit 23 ich rims on a cadillac deville 2000
How do you program keyless remote for 1999 Cadillac?
I need instructions on how to program a keyless remote for a 1999 Cadillac Deville.
Where is the height sensor located on a 1999 cadillac deville?
Type your answer here... where in height sensor location on 1999 cad deville
Where is the fuel pump located on a 1999 Cadillac DeVille?
in the tank
Where is the horn on Cadillac deville 1999?
Under the battery tray
Where is the power window fuse panel on a 1999 cadillac deville?
The fuse panel in a 1999 Cadillac Deville is on the driver side dash panel. You will have to open the car door to access the panel.
Where is the ac low side port on a 1999 Cadillac DeVille?
The AC low side port on a 1999 Cadillac DeVille is against the firewall. It is on the larger of the two hoses going to the AC compressor.
What is the blue book value of a 1999 Cadillac Deville STS?
2500.00
What type of refrigerant do you use for a 1999 cadillac deville?
R 134
