[W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560SECTo Use 87 Octane

[tmewborn at excite.com]

 Hi, Bruce. I'm new to this forum and do not have a Mercedes yet. I am very interested in the 500 or 560SEC, though. Are you sure that putting Toluene in your fuel system is safe? By "safe" I mean safe for your engine. I'm not a chemist by any stretch of the imagination. I never heard of that before, though.Sincerely,Tom Mewborn--- On Fri 04/28, Bruce Mendel < brucem105 at comcast.net > wrote:
From: Bruce Mendel [mailto: brucem105 at comcast.net]To: mbcoupes at mbcoupes.comDate: Fri, 28 Apr 2006 00:31:46 -0400Subject: Re: RE: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560SECTo Use 87 Octane



Two reasons...one, what Richard said, which is that it winds up costing more than premium. Two, and most importantly, read the bottle carefully. The "point" they talk about is actually a tenth of a point! So when they say "raises octane eight points", they mean from 89 to 89.8. What a rip-off, and hardly anyone knows this little tidbit. If you want good stuff, get additive from www.torco.com, or even better, go to Sherwin Williams or any paint store and buy a five gallon pail of Toluene. 114 octane, and boy does it make a difference. I used it all the time in turbocharged track cars.....much cheaper than race gas. This is the stuff, back in the '80s that was the primary ingredient in the Formula 1 "rocket fuel" they used to achieve 1500HP from 1.8 litre turbo motors running 60 lbs of boost! Bruce
----- Original Message ----- From: Shayegan, Richard To: Mercedes Coupes Mailing Lists Sent: Thursday, April 27, 2006 6:46 PMSubject: [Norton AntiSpam] RE: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560SECTo Use 87 OctaneWhich is more than the price difference between low grade and high grade.


From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of mavris2 at comcast.netSent: Thursday, April 27, 2006 7:30 PMTo: Mercedes Coupes Mailing ListsSubject: Re: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560SECTo Use 87 OctaneWhy cant one just add octane boost to the fuel?  They have stuff for 5bucks that claim a 10 point increase in octane.  Any thoughts??  ----- Original Message ----- 
From: Dan Landiss To: Mercedes Coupes Mailing Lists Sent: Thursday, April 27, 2006 3:08 PMSubject: Re: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989 560 SECTo Use 87 OctaneXKEOTS at aol.com wrote: 
Is there any way to make our 560's run or 87 octane?There is a 750 ohm resistor (US models) inside a black plug in the wiring harness up near the brake booster. It contributes to the computer's decision on spark advance. For other markets, an adjustment can be made as follows:





Setting
Ohms
Retard
Octane

S
10000
0
98

2
2400
2
95

N
1300
4
93

4
750
6
91

5
470
8
89

6
220
10
87

7
0

But I gotta tell ya', with 470 ohms in there it is going to feel sluggish!--   =-=-=-=-=-=-=-=- "Progress is brought about by doubt, not accord."  --John Amos Comenius, 17th century educator =-=-=-=-=-=-=-=-



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The MB Coupes Website!W126 SEC Mailing ListPostings remain property of MB Coupes, L.L.C.
The MB Coupes Website!W126 SEC Mailing ListPostings remain property of MB Coupes, L.L.C.

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