Engine gunk.


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Thread: Engine gunk.

  1. #1
    Senior Member Genesis7's Avatar
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    Engine gunk.

    Lately I am wondering if should I use fuel additives on my V10 plus or stick with top tier gas? Any thoughts if is worth spending on fuel additives to keep engine clean from carbon residue?
    Any fuel chemist or engineer input appreciated.

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  3. #2
    Senior Member Trev450's Avatar
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    Re: Engine gunk.

    Fuels additives won't unfortunately help with carbon build up. You're better off just using premium fuel and having a walnut blasting done at some point.
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  4. #3
    Senior Member DaveL's Avatar
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    Re: Engine gunk.

    As Trev said, an additive wont help as the fuel doesn't pass over the valves to aid cleaning, here's a simple video showing FSI system

    https://www.youtube.com/watch?v=YzIIoP2dz8E
    Black/Gold 09 V8 Coupe R-Tronic. Black/Gold 05 Race prep'd Yamaha R1.

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  6. #4
    Senior Member Genesis7's Avatar
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    Re: Engine gunk.

    So snake oil uh? Then I will stick with top tier gasoline.

  7. #5
    Senior Member DaveL's Avatar
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    Re: Engine gunk.

    Quote Originally Posted by Genesis7 View Post
    So snake oil uh? Then I will stick with top tier gasoline.
    And drive it like you stole it as often as you can!!!!!!!!!!
    Black/Gold 09 V8 Coupe R-Tronic. Black/Gold 05 Race prep'd Yamaha R1.

  8. #6
    Senior Member Genesis7's Avatar
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    Re: Engine gunk.

    Quote Originally Posted by DaveL View Post
    And drive it like you stole it as often as you can!!!!!!!!!!
    Thank you but I can't, last time I drove it like I stole it I ended up committing Assault and battery causing serious bodily injury to the owner of the car.

  9. #7
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    Re: Engine gunk.

    Not sure about Gen I cars, but I do know that the Gen II R8s have both direct and port fuel injection. I really like that because that means a high quality additive like Techron will help to keep the valves cleaner. My Porsche is DI only and I wonder about the condition of carbon build up on the valves.

  10. #8
    Senior Member Genesis7's Avatar
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    Re: Engine gunk.

    Its confusing all the information out there, so does it work or not? I just noticed that when I use Premium from top tier gas station the engine on my 981 and Stinger run smoothly and more powerfully but did not notice any change on my R8....

  11. #9
    Senior Member MAR8's Avatar
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    Re: Engine gunk.

    Gen 2 shouldn’t suffer from this with the dual injection system. Things like Techron aren’t going to hurt anything and do help keep things clean like injectors and fuel sensors.


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  12. #10
    Senior Member Trev450's Avatar
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    Re: Engine gunk.

    Quote Originally Posted by Genesis7 View Post
    Its confusing all the information out there, so does it work or not? I just noticed that when I use Premium from top tier gas station the engine on my 981 and Stinger run smoothly and more powerfully but did not notice any change on my R8....
    You don't say which generation your car is.
    10 V10 Coupe, Ibis, 6MT, Capristo, Carbon Blades, OZ Ultraleggera HLT's, Maxton Splitter.
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