my wife used premium gas in my truck which takes regulas just wondering will that mess it up in anyway

SirMike CoachHardy

Asked by Feb 08, 2014 at 10:50 PM about the 1997 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

3 Answers


Honestly Ibiza all vehicles are originally tested with premium gas. Premium gas is just a cleaner gas than regular there are less deposits in premium as opposed to regular. All vehicles mpg rating is based on premium fuel consumption at a 91 octane as opposed to the standard 89 octane. So to answer your question, no premium fuel won't wreck your Yukon you may notice a jump in gas mileage, it won't be substantial but you will notice a slight increase, and you will also notice a bit of a horsepower boost. In the long haul if you switch the gas grade to much it will clogged ur injectors if you run just premium there will be less fuel deposits so less engine maintenance. I hope this was informative for you.

1 out of 1 people think this is helpful.

I run premium in everything. Except for my '03 S10. It's my beater truck. But my '08 Grand Marquis, '94 Cadillac, and '00 Grand Prix get premium. They only need regular but premium burns cleaner, hotter, and slower. This helps reduce deposits and gives better gas mileage. My '93 Caprice always got premium and during the 19 years and 120,000 miles I drove it I never ever had a fuel system problem or ever had to replace one sensor on it. HTH. -Jim


Don't worry about it. You'll be fine.

Your Answer

Add photo

Related Questions


Looking for a Used Yukon in your area?

CarGurus has 14,659 nationwide Yukon listings starting at $1,595.


Search GMC Yukon Questions

GMC Yukon Experts

#1 clayduster71
Reputation 1,950
#2 Danielle Heller
Danielle Heller
Reputation 420
#3 David Boccabello
David Boccabello
Reputation 360
View All

Related Models For Sale

Used Chevrolet Tahoe"
1,056 Great Deals out of 36,219 listings starting at $1,700
Used Chevrolet Suburban"
643 Great Deals out of 24,160 listings starting at $1,500
Used GMC Sierra 1500"
1,020 Great Deals out of 56,299 listings starting at $2,499
Used Ford Expedition"
569 Great Deals out of 21,491 listings starting at $2,111
Used Ford F-150"
3,183 Great Deals out of 216,374 listings starting at $1,900
Used Ford Explorer"
1,336 Great Deals out of 71,680 listings starting at $300
Used Toyota 4Runner"
356 Great Deals out of 18,763 listings starting at $2,400
Used Jeep Grand Cherokee"
1,169 Great Deals out of 73,675 listings starting at $1,500
Used Dodge Durango"
389 Great Deals out of 22,633 listings starting at $1,700

Used Cars For Sale

2017 GMC Yukon SLT 4WD For Sale
260 listings starting at $57,802
2016 GMC Yukon SLT 4WD For Sale
4 Great Deals out of 1,310 listings starting at $39,995
2015 GMC Yukon SLT 4WD For Sale
36 Great Deals out of 569 listings starting at $38,000
2014 GMC Yukon SLT 4WD For Sale
6 Great Deals out of 75 listings starting at $25,495
2013 GMC Yukon SLT 4WD For Sale
5 Great Deals out of 145 listings starting at $21,188