kjbro

My car seems to be running great, however, I've always noticed a light film on the bumper/trunk if I haven't washed in a while. My take is that it is exhaust residue, as it is black. A very light film develops over time. Is this typical for others and/or is there something I should be watching?

Thanks.

lexusk8

Seeing exhaust residue on any vehicle doesn't seem right at all. It sounds like something is clogging up somewhere in emissions system, or maybe you have dirty fuel injectors.

Try inserting some fuel injector cleaner fluid into the fuel tank. Any brand will do, but most people opt for Chevron w/ Techron concentrate; they're one of the best in the market. It's about $6 per bottle to treat up to a 12 gal in a fuel tank, and you can purchase it at any auto parts store like Autozone and Pep Boys. After putting fuel injector cleaner, wait until 2 fill-ups afterwards and see if there's any difference.

lspower

it depends u running factory or aftermarket higher flow exhast?

aftermarket aka higher flow exhaust- black residue is perfectly fine

factory exhaust aka highly choked car- little bit is normal

pic is worth a thousand words

-ryan

RA40

iTrader: (6)

How many miles on your car?

This indicates a rich fuel mixture and or oil is burning. If you don't notice that sulfur smell, then it may be oil. Can be other factors though...

persian451

sounds like you need to clean your car j/p

lspower

wow that was quite the useless post

keep on being a useless post ***** w/ no good info

persian451

i see you are still a dumbass

RA40

iTrader: (6)

I now it's hot today...let's play nice.