What color is your tailpipe

[Mercedesrover]

dmurrel,
Well said and thanks for a real answer. No offense to anyone else.
Jim

I was being serious, actually. I burn diesel.

[Jim-ME]

Of you sir I am jealous. Hopefully someday.

[TSR53]

I was serious too! I guess it didn't come out that way though...

What I meant to say Jim... IMHO, every car in the waaaay past I've driven without a catalytic convertor and used leaded petrol the tail pipe was grey. All the cars I've owned with cats and run unleaded petrol [including my '94 Defender 90 NAS] the tail pipes were black and looked like I ran diesel! Sooo, I think that you're ok with your Series as long as it get's decent mpgs (12-16 range or maybe better?) and isn't burning too much oil up. Sooty would be richer and not as crumbly sooty would be leaner. The best test would be to hook it to an exhaust sensor and that way you could dail it right in.

ps... sorry I didn't mean that race 108 octane Sunoco leaded fuel make you go any faster or that you should be using it to run grey.

[Jim-ME]

I was basing my question on the days of leaded fuel and woindered if unleaded fuel burned the same way. At times I worry too much about the condition of my engine and just want to get as much out of it as it will give.
Jim

[Mercedesrover]

I was recently at the Lime Rock Vintage festival and most if not all had grey exhaust as they are running leaded 108 race fuel.

Hey Thompson, next time you're headed to Lime Rock, give me a shout. I'm 5 minutes from there.

jim

[LaneRover]

Black and sooty means that you are running too rich. This is a guess but I would guess that in a perfect world you should have a greyish color that isn't sooty.

Brent

[chester rides again]

I asked a legitimate question. It doesn't help me make sure my Rover is tuned and adjusted correctly if I get cutsie answers.

Looks like you got enough "serious" replys - glad to see my "cutsie" answer didn't throw you off.

[SalemRover]

I was so tempted to ask if Meineke is a color. Mine is black too, Im running a diesel as well. My 2.25 gas was black too. It seemed alot easier to simply smell the exhaust. Rich exhaust and lean exhaust have very different smells. I always know when someone isnt running cats in front of me now.

-Jason

[Donnie]

Ya gotta get a sense of the crew on here man, UR gonna get all kinds of answers.U have 2 sort out the serious ones. I found that out QUICK .. Mercedes/ black= correct/funny2..Green??? if your engine is running correct, a finger wipe"in the exhaust that is" should yeild nothing... what are U getting?.......Donnie