I have a 2011 dodge challenger R/T with the 5.7 6 speed manual with 6000 miles on it and always used 93 octane gas until my last fill, I used 91 octane because a buddy told me I was wasting money on 93 octane and since the change it seems I have more power, faster start ups even after garaging for days but there is a strange odor coming from exhaust smells like burnt rubber. Does anyone know what this is and is it serious?

15

Asked by Nov 10, 2014 at 09:21 PM about the 2011 Dodge Challenger R/T

Question type: Maintenance & Repair

I recently changed octane fuels from 93 to 91 and Ive noticed a burnt rubber smell from the exhaust, is this serious. My car only has 6000 miles on it and I always used 93 octane until last fill up

11 Answers

65

I have a 2012 auto with 6,400 miles.... my car calls for 89 octane and the 6spd calls for 91 octane stock from the factory... My car runs best with 91 octane then 93, If I was you I would stick with 91 octane!! has far is the rubber smell I would check to see if you had ran over a plastic bag or some sort because it takes time for the plastic burn off from the exhaust pipes happened to me once... double check to see if you are leaking oil on to your exhaust pipes will also smell... do you change your own oil? if not double check for any leaks specially on the ground!! one more question did you buy the car new? hope this helps!!

1 out of 1 people think this is helpful.
15

Thanks for your help, no I bought it used with 5000 miles on it but its super clean. its been about 700 miles since oil change and I had it done at dodge dealership because I get 6 free ones in the next two years because of my purchase. it is garaged and there are no spots on ground. Its either plastic that I ran over like you said or something like that I was just worried that I ruined the catylitic converters running 93 octane. Thanks for your answer and I am taking your advuce and staying with 91 octance. I know it seems to start easier and honestly seems more powerful than 93 octane. Thanks again

65

Do you Facebook? if so add me as a friend I can steer you in the right direction about these cars and I also know people who have them that know more then me!! I'm a very passionate car guy willing to help out any way I can!! https://www.facebook.com/profile.php?id=100000737843743

65

Name is salvatore esposito Eagles fan lol

15

We are now facebook friends, Salvatore, nice to meet you, thanks for your help and oh yeah even though they are bums GO STEELERS.

2,445

I f i where you i'd stick with 93 octane, the 91 is cheaper, but in the combustion chamber, the lower octane gas does not completely burn, and thats why your smelling strong orders. And one other thing,the unused gas will eventually kluge your oxygen senor, and your catalytic converter, and i should not have to tell you how expensive that is!!!!!!!! hope this helps

1 out of 1 people think this is helpful.
15

Thanks for your help rst429, I appreciate you taking time to help me.

2,445

Caiaccia1, No Problem, I'm just glad i could help "GO LIONS"

1 out of 1 people think this is helpful.
185

The higher the octane is the slower it burns, my 300C calls for 91 but at times I will mix it with 89 or just use 89 on occasion and it works fine no problems. Bought mine used also and it now has over 100,000 and still runs like it was new. and yes if you use higher octane it will damage the converters and the oxygen sensers and they are H#l& to change, I try to do most of my own work but at 60 Its getting harder to get off the floor. As far as your rubber smell the other poster was right there is nothing that would cause a rubber smell in the engine or exhaust. GOOD LUCK!

1 out of 1 people think this is helpful.
15

Thanks for posting this for me, I appreciate any and all replys to my question and consider it all a huge help for me. Thanks again

185

Your welcome, just trying to help<,Dave

Your Answer

Add photo

Related Questions

  • Dodge Challenger SRT8 - Brakes are grinding and squealing. Is it safe to drive? 4 answers

    2008 Dodge Challenger SRT8

    -

    Maintenance & Repair

  • 2006 Charger RT stalls just after fill up 95 answers

    I have experienced something strange and would like to know if others have had the same problem. A week ago I fill the charger up (premium) and then made a very short drive to the local DD drive up a...

    2006 Dodge Charger RT

    -

    Maintenance & Repair

  • How serious is my oil leak? What could be the cause? 6 answers

    Just bought a used farm truck out of desperation. It's in rough shape from an aesthetic standpoint but otherwise it's been well maintained. My friend borrowed my car where it sat outside for a fe...

    2002 Dodge Dakota 4 Dr Sport Quad Cab SB

    -

    Maintenance & Repair

  • 2008 Dodge Charger will NOT start! PLEASE HELP!!! 306 answers

    Forgive me for being too descriptive or long winded but I wanted to make sure I provided as much information and detail as possible to make the diagnosis much easier. I have a 2008 Dodge Charger 2.7L...

    2008 Dodge Charger SE

    -

    Maintenance & Repair

  • 4x4 Transfer case 260 answers

    Good afternoon all. About two weeks ago my Durango's 4x4 started to engage without being switched and with no indication on the instrumentation panel. The problem is that this is happening on the high...

    2005 Dodge Durango Limited 4WD

    -

    Maintenance & Repair

Challenger

Looking for a Used Challenger in your area?

CarGurus has 24,087 nationwide Challenger listings starting at $8,990.

ZIP:

Search Dodge Challenger Questions

Dodge Challenger Experts

#1 cubfan08
cubfan08
Reputation 650
#2 Chase Sutherland
Chase Sutherland
Reputation 480
#3 Jeff Schmidt
Jeff Schmidt
Reputation 450
View All

Related Models For Sale

Used Dodge Charger
388 Great Deals out of 28,104 listings starting at $1,988
Used Chevrolet Camaro
205 Great Deals out of 30,803 listings starting at $1,217
Used Ford Mustang
454 Great Deals out of 45,579 listings starting at $1,999
Used Chevrolet Corvette
121 Great Deals out of 20,515 listings starting at $3,000
Used Chrysler 300
394 Great Deals out of 19,952 listings starting at $1,000
Used Chevrolet Silverado 1500
1,666 Great Deals out of 174,457 listings starting at $1,300
Used Ford F-150
2,211 Great Deals out of 205,389 listings starting at $1,499
Used Jeep Grand Cherokee
1,024 Great Deals out of 74,105 listings starting at $800
Used Jeep Wrangler
279 Great Deals out of 18,077 listings starting at $2,950
Used Chevrolet Impala
580 Great Deals out of 31,624 listings starting at $799
Used Dodge Ram 1500
472 Great Deals out of 11,174 listings starting at $700
Used BMW 3 Series
1,019 Great Deals out of 31,750 listings starting at $1,000
Used Jeep Wrangler Unlimited
264 Great Deals out of 43,236 listings starting at $10,200
Used Ford Shelby GT500
553 listings starting at $23,500
Used Nissan GT-R
528 listings starting at $52,987

Used Cars For Sale

2017 Dodge Challenger R/T For Sale
2,122 listings starting at $25,455
2016 Dodge Challenger R/T For Sale
3 Great Deals out of 697 listings starting at $24,800
2015 Dodge Challenger R/T For Sale
4 Great Deals out of 190 listings starting at $21,900
2014 Dodge Challenger R/T For Sale
7 Great Deals out of 404 listings starting at $18,298
2013 Dodge Challenger R/T For Sale
5 Great Deals out of 241 listings starting at $14,268

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.