2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

oil smells like gas

Thread Tools
 
Search this Thread
 
Old 01-20-07, 05:05 PM
  #1  
highway to the dangerzone

Thread Starter
 
carl_9_9's Avatar
 
Join Date: Jul 2005
Location: indiana
Posts: 295
Likes: 0
Received 0 Likes on 0 Posts
oil smells like gas

questions. my car oil smells like rich gas. and my car only gets 15-18 mpg or to be exact i can only go 250 A TANK
Old 01-20-07, 05:10 PM
  #2  
Boost knob

iTrader: (13)
 
incubuseva's Avatar
 
Join Date: Feb 2004
Location: Lake Stevens
Posts: 1,716
Received 2 Likes on 2 Posts
yep. get used to it. i'm in the same boat as you. i think the only real solution is a rebuild.
Old 01-20-07, 05:13 PM
  #3  
Upside-umop Racing

iTrader: (1)
 
Bama420's Avatar
 
Join Date: Nov 2006
Location: Naples, Fl
Posts: 412
Likes: 0
Received 0 Likes on 0 Posts
Rx7s run rich. That's just the way it is. And if you're getting 18mpg, you're doing better than most of the people on this website. Welcome to the rotary lifestyle. We drink gas like the Irish drink brews and we choke everyone around us out at a redlight. You will learn to love it. Especially after you get a bunch of mods under your belt and beat the ***** that's always talking up his ******* Mustang.
Old 01-20-07, 05:18 PM
  #4  
Rotating Performance.

iTrader: (42)
 
cr7684's Avatar
 
Join Date: Jul 2005
Location: Miami, FL.
Posts: 1,820
Likes: 0
Received 0 Likes on 0 Posts
"Especially after you get a bunch of mods under your belt and beat the ***** that's always talking up his ******* Mustang." Bama420 LMAO you are ******* sick and I LOVE IT....
Old 01-20-07, 05:22 PM
  #5  
Boost knob

iTrader: (13)
 
incubuseva's Avatar
 
Join Date: Feb 2004
Location: Lake Stevens
Posts: 1,716
Received 2 Likes on 2 Posts
ahahahah nice.
Old 01-20-07, 05:34 PM
  #6  
DGRRX

iTrader: (3)
 
djmtsu's Avatar
 
Join Date: May 2002
Location: Murfreesboro TN
Posts: 2,243
Likes: 0
Received 0 Likes on 0 Posts
Yeah get used to it. I can use my oil as premix for my weedeater. Hmmm, maybe I'll try that.

And that is with a fresh rebuild, engine age has little to do with it.
Old 01-20-07, 08:03 PM
  #7  
I have a rotary addiction

iTrader: (18)
 
NCross's Avatar
 
Join Date: Jun 2006
Location: Columbia, Tennessee
Posts: 4,815
Received 23 Likes on 22 Posts
hey at least you know your oil level will stay steady for a little while longer. i think thats why i never have to put a quart in everytime i fill up... people seem amazed at that for some reason...
Old 01-20-07, 08:17 PM
  #8  
I'll blow it up real good

iTrader: (1)
 
RX-Heven's Avatar
 
Join Date: May 2001
Location: San Francisco, CA
Posts: 2,390
Likes: 0
Received 1 Like on 1 Post
It has nothing to do with how rich or lean your car is running.

The gas in your oil is caused from blowby gases getting passed the side seals and mixing with the oil. Quite normal for rotaries, especially with high mileagae engines.
Old 01-21-07, 03:42 PM
  #9  
Rotary Enthusiast

iTrader: (1)
 
yeti's Avatar
 
Join Date: Mar 2006
Location: Knoxville, TN
Posts: 944
Received 53 Likes on 43 Posts
10mpg club. represent.
Old 01-21-07, 03:49 PM
  #10  
Rotartist

iTrader: (13)
 
RRTEC's Avatar
 
Join Date: Sep 2003
Location: Spring Hill TN 37174
Posts: 7,252
Likes: 0
Received 2 Likes on 2 Posts
Originally Posted by Bama420
Rx7s run rich. That's just the way it is. And if you're getting 18mpg, you're doing better than most of the people on this website. Welcome to the rotary lifestyle. We drink gas like the Irish drink brews and we choke everyone around us out at a redlight. You will learn to love it. Especially after you get a bunch of mods under your belt and beat the ***** that's always talking up his ******* Mustang.
Damn I own a modded 2000 Mustang GT and a Modded Rx-7... I must be Hermaphrodite or something...
Old 01-21-07, 03:57 PM
  #11  
Banned. I got OWNED!!!
 
rotatech's Avatar
 
Join Date: Dec 2006
Location: miami
Posts: 399
Likes: 0
Received 0 Likes on 0 Posts
ok u could do something to stop this problem open the oil cap and throw a match inside and step away asap and wait for actions
Old 01-21-07, 11:01 PM
  #12  
It LIVES!!!!

 
C.A.R's Avatar
 
Join Date: Sep 2006
Location: Arlington, TX
Posts: 278
Likes: 0
Received 0 Likes on 0 Posts
My gas smells like oil...?
Old 01-21-07, 11:19 PM
  #13  
Rotary Fan

 
FC Zach's Avatar
 
Join Date: Nov 2006
Location: Eagleville, TN
Posts: 159
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by C.A.R
My gas smells like oil...?
Yeah so does my interior, clothes, garage...... Damn pre-mix, gotta love it!!
Old 01-22-07, 12:02 AM
  #14  
Rotary Enthusiast

iTrader: (1)
 
tandolla's Avatar
 
Join Date: Dec 2005
Location: Everett, WA
Posts: 1,017
Likes: 0
Received 0 Likes on 0 Posts
Yeah so does my interior, clothes, garage...... Damn pre-mix, gotta love it!!
HAHAHA +1
Old 01-22-07, 12:09 AM
  #15  
Clean.

iTrader: (1)
 
ericgrau's Avatar
 
Join Date: Mar 2005
Location: Huntington Beach, CA
Posts: 2,521
Received 2 Likes on 2 Posts
Just took a trip of about 400 miles. On the last 3/4 I carefully measured 23mpg going 90mph and redlining several times.
First 1/4 was in traffic and had some pre-trip city/traffic driving on 1/3 of the same tank, yielding 19.5mpg for that tank. Last 3/4 also included some traffic at the end.
I just hate it when people say their beat up engine is normal.
But hey, have fun, run it into the ground and don't skimp on the rebuild.
Old 01-22-07, 12:15 AM
  #16  
I'd hit it.

 
88turbotime's Avatar
 
Join Date: Feb 2004
Location: Texas
Posts: 833
Likes: 0
Received 0 Likes on 0 Posts
wait i thought that if there was gas in your oil it meant you have something really wrong like a bad seal of some sort.
Old 01-22-07, 12:22 AM
  #17  
s4 for life

 
13bpower's Avatar
 
Join Date: May 2002
Location: Oahu
Posts: 2,516
Likes: 0
Received 1 Like on 1 Post
The stock "tune" on an FC is very rich. Higher milage engines use a little more gas as you lose compression but a decent engine in a FC should get you 23-27 mpg on the freeway. Alot of people who get under 15mpg to alot of stoplight to stoplight driving and have a heavy foot. There are alot of other things that can hurt your gas milage like faulty O2 sensor, clogged cats, dirty air filter, ect.

As for the gas in the oil smell..... Side seals are not sealing as well as they used to. Change your oil regularly and hope the engine lasts as long as possible.

Steve
Old 01-22-07, 12:52 AM
  #18  
Clean.

iTrader: (1)
 
ericgrau's Avatar
 
Join Date: Mar 2005
Location: Huntington Beach, CA
Posts: 2,521
Received 2 Likes on 2 Posts
27? Really? I haven't gotten better than 26 yet but maybe I just haven't had the patience to try. Is that with or without mods?

EDIT: I typically have no trouble getting 25 on my almost-stock '7, but without any messing around. Though it's been a while since I've driven that slow on the freeway for an entire tank. My real mileage is 17/23, and I have fun with that. Stuck in 25mph speed limit, stop sign ridden roads while making short trips around college I get 13mpg. And lots of yearning for open roads. Sigh.

Last edited by ericgrau; 01-22-07 at 01:19 AM.
Old 01-22-07, 01:01 AM
  #19  
Junior Member

 
13b_lover's Avatar
 
Join Date: Jun 2005
Location: fairfield
Posts: 31
Likes: 0
Received 0 Likes on 0 Posts
i get 25mpg messin around on the freeway with exhaust and intake but hopefully 28-9ish with the msd i just installed
Old 01-22-07, 01:11 AM
  #20  
Retired Moderator, RIP

iTrader: (142)
 
misterstyx69's Avatar
 
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,581
Likes: 0
Received 131 Likes on 114 Posts
I would Be lookin into a new O2 sensor with mileage like that.Also If the Car has been Flooded recently,or Floods alot,then you would be Gettin the gas into the oil due to that.This can be fixed by Removing/cleaning/replacing the fuel Injectors.Gas will break down oil,and we all know what happens when that happens..Yes!.. Rebuild time will be right around the next corner.

Last edited by misterstyx69; 01-22-07 at 01:20 AM.
Old 01-22-07, 01:25 AM
  #21  
Red Neck Tony Stark - C2

iTrader: (1)
 
Rx7_Nut13B's Avatar
 
Join Date: Aug 2002
Location: Houston Tx
Posts: 2,828
Likes: 0
Received 1 Like on 1 Post
HAHAHAHAHAH 10MPG I WISH

2X 850cc
4X 1300cc

I get about 5mpg off boost. LOL
Old 01-22-07, 02:19 AM
  #22  
R.I.P. Icemark

iTrader: (2)
 
staticguitar313's Avatar
 
Join Date: Sep 2004
Location: gilbert, arizona
Posts: 4,229
Likes: 0
Received 1 Like on 1 Post
^^ you need a tuning.
Old 01-22-07, 02:24 AM
  #23  
Red Neck Tony Stark - C2

iTrader: (1)
 
Rx7_Nut13B's Avatar
 
Join Date: Aug 2002
Location: Houston Tx
Posts: 2,828
Likes: 0
Received 1 Like on 1 Post
Originally Posted by staticguitar313
^^ you need a tuning.
Left it Rich

but 560hp@7400 needs alot of gas lol
Old 01-22-07, 07:53 AM
  #24  
Rotary Enthusiast

iTrader: (1)
 
yeti's Avatar
 
Join Date: Mar 2006
Location: Knoxville, TN
Posts: 944
Received 53 Likes on 43 Posts
I guess I have a super heavy foot becuase the engine probably have about ~59k and 100front 110rear compression. I don't however have an exhaust leak so maybe I have clogged cats too. and probably other problems as well.
Old 01-23-07, 08:16 PM
  #25  
It LIVES!!!!

 
C.A.R's Avatar
 
Join Date: Sep 2006
Location: Arlington, TX
Posts: 278
Likes: 0
Received 0 Likes on 0 Posts
I got about 6 mpg when I first got mine... It was very clean with only about 73k... I did a lot of regular tune up stuff and I get about 15 now... That is mainly street driving... And yes... I have a heavy foot... If I remember correctly though... The original stickers on the 7's only said they get 15-23 mpg depending on if it is street or highway... Or something like that...


Quick Reply: oil smells like gas



All times are GMT -5. The time now is 11:27 AM.