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

[Shayegan, Richard]

Which 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.net
Sent: Thursday, April 27, 2006 7:30 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Fuel Requirements or How Can I Adjust 1989
560SECTo Use 87 Octane


Why 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 <mailto:dan at landiss.com>  
	To: Mercedes Coupes Mailing Lists <mailto:mbcoupes at mbcoupes.com>

	Sent: Thursday, April 27, 2006 3:08 PM
	Subject: Re: [W126 Coupe] Fuel Requirements or How Can I Adjust
1989 560 SECTo Use 87 Octane

	XKEOTS 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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