Engine

Asked by Feb 09, 2017 at 09:33 AM about the 1996 GMC Sierra 1500 K1500 SLT 4WD Extended Cab LB

Question type: Maintenance & Repair

My 350 engine has got gas in the oil I
think. Could it be from a low viscosity oil or
bad injector?

6 Answers

73,155

It could be by the way it is running, but the check engine light would come on indicating a problem.

The light isn't on but the oil on my dipstick is getting higher up

73,155

Then you have a blown head gasket.

73,155

By chance do you live in Washington State? I knew a John Roberts out there...

No

50,855

If the oil smells of gasoline and the level is increasing a fuel injector that is leaking is the likely cause. This will not cause the oil in the engine to look any different. A blown head gasket that is leaking coolant into the oil will make the oil look much like chocolate milk.

Your Answer

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 10,496 nationwide Sierra 1500 listings starting at $2,995.

Postal Code:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,300
  • #2
    John Saffrahn
    Reputation
    3,670
  • #3
    Glenn Clingenpeel
    Reputation
    3,350
View All

Related Models For Sale

Used Ford F-150
447 Great Deals out of 9,148 listings starting at $3,000
Used Dodge Ram 1500
58 Great Deals out of 529 listings starting at $2,995
Used Toyota Tacoma
33 Great Deals out of 797 listings starting at $5,995
Used GMC Yukon
14 Great Deals out of 863 listings starting at $5,950
Used Chevrolet Tahoe
5 Great Deals out of 641 listings starting at $6,871
Used Chevrolet Camaro
785 listings starting at $12,995

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
13 Great Deals out of 6,570 listings starting at $25,988
2016 GMC Sierra 1500 For Sale
29 Great Deals out of 231 listings starting at $21,988
2015 GMC Sierra 1500 For Sale
69 Great Deals out of 556 listings starting at $20,950
2014 GMC Sierra 1500 For Sale
39 Great Deals out of 513 listings starting at $16,963
2013 GMC Sierra 1500 For Sale
25 Great Deals out of 263 listings starting at $10,560

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.