I have a 2002 Cadillac Escalade. I have always used premium gas, but want to know if I can switch to regular gas without hurting my engine.

Asked by Mar 29, 2014 at 12:36 PM about the 2002 Cadillac Escalade 4WD

Question type: Maintenance & Repair

5 Answers

12,185

Lower the octane rating on the fuel the quicker the fuel will burn. It won't hurt it, but it may decrease performance a bit..

1 of 1 people found this helpful.
9,345

try mid grade for awhile before you drop to regular. Most GM engines will run on regular (no E85). Depending on your driving style - maybe you will notice a slight drop in performance. As for mileage - "maybe" it will drop a little - but not even close to as much money as you will save going from Premium to Regular gas. If possible, stick with Tier 1 gasoline. It has higher cleaning and performance additives than the minimum required by law.

3 of 3 people found this helpful.
17,125

I saw a TV show (in Canada) where they debunked the myth about regular vs high test - they ran tests and diagnostics and concluded that regular was just fine in all cars. We pay the lovely price of $1.25/litre for regular and $1.45/litre for 93 octane, so I switched to regular - BIG MISTAKE, car started to run crappy and mileage dropped. I went back to 93 octane and after a few tanks the performance was back. ($4.60 and $5.30 per U>S? gallon) I gladly pay the extra!! STICK WITH HIGHEST OCTANE YOU CAN GET

2 of 2 people found this helpful.
9,345

If you went straight from Premium to Regular - I would expect those results. My original post suggested using Mid-Grade which is 89 Octane. Switch to Mid-Grade and stay there awhile. At 89 Octane, it is normally a good choice between the pump 93 Octane and the recommended 91 Octane of some engines.

1 of 1 people found this helpful.
17,125

I always fill up at half a tank so the change down is indeed gradual because it mixes half tank of high test to half tank of low test and you get first time a mixed blend in the tank of about 91.5,second time you end up at about 90 etc.. I'm staying at 93 now that I'm back;only adds $15.. to a full tank (ie:costs me $7. extra each time I gas up and where I live that won't buy me one pack of smokes.)

Your Answer

Escalade

Looking for a Used Escalade in your area?

CarGurus has 11,884 nationwide Escalade listings starting at $1,200.

ZIP:

Cadillac Escalade Experts

  • #1
    Warren Fields
    Reputation
    310
  • #2
    COMETGUY61
    Reputation
    150
  • #3
    F_O_R
    Reputation
    140
View All

Related Models For Sale

Used Chevrolet Tahoe
786 Great Deals out of 41,559 listings starting at $1,987
Used GMC Yukon
582 Great Deals out of 20,783 listings starting at $2,695
Used Cadillac Escalade ESV
119 Great Deals out of 5,760 listings starting at $4,500
Used Cadillac Escalade EXT
25 Great Deals out of 607 listings starting at $3,500
Used Chevrolet Suburban
474 Great Deals out of 23,980 listings starting at $1,799
Used GMC Yukon XL
275 Great Deals out of 14,491 listings starting at $2,495
Used GMC Sierra 1500
1,149 Great Deals out of 64,213 listings starting at $999
Used Land Rover Range Rover
64 Great Deals out of 4,376 listings starting at $2,999
Used Chevrolet Silverado 1500
2,564 Great Deals out of 173,268 listings starting at $1,000
Used Ford F-150
3,134 Great Deals out of 219,089 listings starting at $1,200
Used Lincoln Navigator
88 Great Deals out of 3,819 listings starting at $1,955
Used Mercedes-Benz S-Class
154 Great Deals out of 8,154 listings starting at $1,200
Used Ford Expedition
347 Great Deals out of 17,147 listings starting at $1,500
Used Chevrolet Corvette
164 Great Deals out of 17,423 listings starting at $3,000

Used Cars For Sale

2017 Cadillac Escalade 4WD For Sale
58 listings starting at $59,800
2016 Cadillac Escalade 4WD For Sale
2 listings starting at $59,998
2015 Cadillac Escalade 4WD For Sale
10 listings starting at $47,995
2013 Cadillac Escalade 4WD For Sale
2 listings starting at $35,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.