FWIW, there is a station here in Charleston with a big sign proclaiming ethanol-free gasoline is sold. I think it is an Exxon station. It is on North Rivers Ave, near the intersection with Aviation Ave.
- Max -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Bigham Sent: Tuesday, December 29, 2009 4:14 PM To: [email protected] Subject: [MBZ] Fuel for a 103 Vergasser engine? Ethanol or not? My 1983 123.223 has 9.0 to 1 compression on 102.980 (Euro and Rest of World Specification) engine. Has Bosch CIS not CIS-E injection. Marked on body at fuel cap "BLEIFREI SUPER." Book says use 93 RON (Research Octane?). For a long time I ran 92 octane (R+M)/2. Finally I said what the hey and tried 87 (R+M/2). Timing set per book. No problems whatsoever. 27 mpg on highway 80 mph and less. 20-22 mpg in general driving mostly in town lots of starts and stops. Top speed well exceeds 105 mph indicated. I understand 120 mph indicated is close. I haven't tried it. FWIW I think the 102 engine may be a little technically advanced in design compared to a 103. Maybe not. Has hemispherical combustion chambers, sohc with long rocker arms, and I think canted valves. I know my 102.980 hung the moon in my book. Zoom zoom at all of you. Yesterday a 123 (diesel?) that must have been going at least 90 mph on Interstate 20 in Fort Worth came up behind me, passed, and continued off into the distance. Perhaps no Zoom zoom at him. And I'm pretty sure there's no pump gasoline now that doesn't contain 10% ethanol, which ought to allow slightly higher compression, regardless of octane rating. I know there doesn't seem to be any without ethanol around here in Texas, and we make the stuff (gasoline,that is). Racing fuel has all the goodies and OMG the price. Blame the ethanol on others. I doubt there are many real problems associated with 10% ethanol and Benz 102 or 103 engines. > 9. Fuel for a 103 Vergasser engine? Ethanol or not? (OK Don) > 10. Re: Fuel for a 103 Vergasser engine? Ethanol or not? (Dieselhead) > 11. Re: Fuel for a 103 Vergasser engine? Ethanol or not? (OK Don) > 12. Re: Fuel for a 103 Vergasser engine? Ethanol or not? (Mitch Haley) >Message: 9 >Date: Tue, 29 Dec 2009 11:15:48 -0600 >From: OK Don <[email protected]> >To: Mercedes Discussion List <[email protected]> >Subject: [MBZ] Fuel for a 103 Vergasser engine? Ethanol or not? > >What is the general thought on fuel with ethanol in a '91 300E? > >-- >OK Don > > >>Date: Tue, 29 Dec 2009 12:04:42 -0600 >From: Dieselhead <[email protected]> >Subject: Re: [MBZ] Fuel for a 103 Vergasser engine? Ethanol or not? > >10% blend worked fine in our 230TE M103 Being a Euro tuned engine, >I think it has higher compression than US models. > > >Subject: Re: [MBZ] Fuel for a 103 Vergasser engine? Ethanol or not? >Message-ID: > >No issues with disolving seals, etc. in the fuel system? > >On Tue, Dec 29, 2009 at 12:04 PM, Dieselhead <[email protected]> wrote: > >> 10% blend worked fine in our 230TE M103 Being a Euro tuned engine, I >> think it has higher compression than US models. >> >> >Message: 12 >Date: Tue, 29 Dec 2009 13:38:52 -0500 >From: Mitch Haley <[email protected]> >Subject: Re: [MBZ] Fuel for a 103 Vergasser engine? Ethanol or not? > > >OK Don wrote: >> No issues with disolving seals, etc. in the fuel system? > >I never had any issues in my 1977 SAAB with Bosch CIS running E10 in the >mid-late 1980s. Anything made after about 1985 should have been built with E10 >in mind. > >Mitch. > >>Message: 13 >Date: Tue, 29 Dec 2009 13:46:15 -0500 >From: "LarryT" <[email protected]> >>Message: 14 >Date: Tue, 29 Dec 2009 13:49:34 -0500 >> >You asked << fuel with ethanol in a '91 300E>> >I think the question is moot - can you buy fuel *without* 10% E? > >LarryT >91 300D > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
