Ok...

It seems as though everytime I clean my exhaust tip, it gets black again in just a few days. There's a nice thick layer on there right now. Does this happen to you guys? I hope this is normal. It looks like I'm running super rich. It doesn't look pretty at all

Anyone?

 

My exhaust tip seems to be about the only part of my car that stays clean.

Sorry I'm not inclined enough to offer any sort of explanation of why yours may be dirty.

 

My 2006 LX is burnning clean, you may want to take it in. Sounds like it's burnning rich!!

 

I duno if thats abnormal in the R18, but in the K20 it seems to be casual. Mines ALWAYS dirty... I clean it now and then.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Demonis &raquo;</TD></TR><TR><TD CLASS="quote">I duno if thats abnormal in the R18, but in the K20 it seems to be casual. Mines ALWAYS dirty... I clean it now and then.</TD></TR></TABLE>

same as my si....but the si runs rich too...i've heard of a few r18 owners complaining about htis...maybe you should take it in? it comes off easily though...i just wash it with the soap brush when im at the car wash

 

ya i put a vibrant tip on , not muffler or anything and it def is dirty most of the time....give it a clean wipe with tire shine or something

 

its suppose to get dirty

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cruorem &raquo;</TD></TR><TR><TD CLASS="quote">My exhaust tip seems to be about the only part of my car that stays clean. </TD></TR></TABLE>

Clean as a whistle....Probably the cleanest part of my car

 

My exhaust tip is pretty black... What type of Octane do you guys use? I know it calls for regular unleaded, but i've put in the middle grade every once in a while. Somebody told me it improves mileage?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jonssonar &raquo;</TD></TR><TR><TD CLASS="quote">My exhaust tip is pretty black... What type of Octane do you guys use? I know it calls for regular unleaded, but i've put in the middle grade every once in a while. Somebody told me it improves mileage?</TD></TR></TABLE>

I don't believe putting higher octane gas into your vehicle will improve mileage. If that were the case, then everyone would want to use high octane fuel if it offset cost for mileage. In fact, using higher octane might be the cause of your carbon deposits on your exhaust tip.

 

Not true, I you premium in my LX and my pipe is clean.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jmaz &raquo;</TD></TR><TR><TD CLASS="quote">Not true, I you premium in my LX and my pipe is clean. </TD></TR></TABLE>

Hence the "might"

Now that I think about it more, I have a feeling that the carbon deposits on your pipe are a combination of a lot of elements - altitude, humidity, gas, aftermarket/stock intake, how you drive, etc, etc, etc...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MonkeyConQueso &raquo;</TD></TR><TR><TD CLASS="quote">

Hence the "might"

Now that I think about it more, I have a feeling that the carbon deposits on your pipe are a combination of a lot of elements - altitude, humidity, gas, </TD></TR></TABLE>

So true, I use crappy Arco 87 octane ($2.05 a gallon, I'm broke bee-yatch!), drive in a very dry environment and I don't have that dirty tailpipe problem. I'm guessing it's the "elements" thing. I'm guessing.

 

I use regular because I tried 2 tanks of premium and saw no improvement in mpg.

 

06 dx,lx,ex car manual recommends regular 87. For the Si it recommends 91.

 

Only a little dirt once in awhile if I drive it hard. I like to spray it clean and turn on the car and watch the water fly out and show the shiny exhaust.

 

Mine is clean... "After a wash" LOL.. use rim cleaner and old wash mits..