[AT] unleaded gasoline/"winter gas"???

[John Wilkens]

Well I'll be!!!   Thanks fellas for setting me straight.    John W.



At 11:26 AM 12/04/2005, you wrote:
>Certainly!  That's how they make it possible to start engines in the 
>winter. They have to reverse the process for summer grades to avoid 
>excessive evaporation.  I understand there are (or were) more different 
>formulations for intermediate conditions, but with EPA meddling... who 
>knows?  That's also why on long trips the mileage is slightly better when 
>travelling north than it is travelling south.
>
>George Willer
>
>----- Original Message ----- From: "John Wilkens" <jwilkens at eoni.com>
>To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
>Sent: Sunday, December 04, 2005 11:55 AM
>Subject: Re: [AT] unleaded gasoline/"winter gas"???
>
>
>>This gasoline talk raises a question that came up last week...    It gets 
>>pretty cold in my neck of the woods and a local chainsaw/lawnmower 
>>repairman said our gas is "winterized."  He says they put more butane in 
>>the winter gas for more volitility and easier starting.  Never heard 
>>anything like that!  Is there any truth in it?    John W.
>>
>>
>>
>>
>>At 01:19 PM 12/03/2005, you wrote:
>>>Thanks, Gene.
>>>         That is pretty much what I had been thinking.  I was just 
>>> wanting some opinions to hand to by brother.  He had been buying 
>>> gasoline from a local supplier that delivered a lead substitute in the 
>>> gasoline for regular burners.  That supplier sold out and the new 
>>> owners will no longer supply the fuel with the additive 
>>> premixed.  Personally, I always thought that supplier was just pulling 
>>> the wool over and his customers were probably only paying for some red dye.
>>>
>>>Ron Cook
>>>Salix, IA
>>>
>>>Gene Dotson wrote:
>>>>     Ron;
>>>>     All tractor and automotive engines built since 1972 are
>>>>designed to run on unleaded fuel. They will likely run longer
>>>>because of the lack of contaminants from the lead additive in
>>>>the fuel. The primary need for lead in the older fuels it to
>>>>bring the octane level high enough to prevent detonation in
>>>>higher compression engines. Modern fuel are formulated to meet
>>>>this octane requirement by other means. The primary concern to
>>>>using unleaded fuels in older engines was erosion and wear to
>>>>valves and valve seats. Most engines by this time that are in
>>>>regular use have had the valve seats and valves replaced by
>>>>special alloy parts, such as Stellite, that resists the heat and
>>>>wear.
>>>>     For your tractors I would just add fuel and not give it a
>>>>second thought.. John Deere has used the Stellite parts since
>>>>the mid 50's.
>>>>                     Gene
>>>>
>>>>
>>>>----- Original Message -----
>>>>From: "Ronald L. Cook" <rlcook at pionet.net>
>>>>To: "Antique tractor email discussion group"
>>>><at at lists.antique-tractor.com>
>>>>Sent: Friday, December 02, 2005 11:21 AM
>>>>Subject: [AT] unleaded gasoline
>>>>
>>>>: Opinions please.  2510, 3010, and 4020 John Deere gas
>>>>tractors.  Working
>>>>: tractors, not parade tractors.  Are they going to hold up on
>>>>unleaded
>>>>: gasoline or do they need some lead from time to time?
>>>>:
>>>>: Ron Cook
>>>>: Salix, IA
>>>>:
>>>
>>>_______________________________________________
>>>AT mailing list
>>>Remembering Our Friend Cecil Monson 11-4-2005
>>>http://www.antique-tractor.com/mailman/listinfo/at
>>
>>
>>                    In the wide-open spaces of NE Oregon
>>
>>
>>_______________________________________________
>>AT mailing list
>>Remembering Our Friend Cecil Monson 11-4-2005
>>http://www.antique-tractor.com/mailman/listinfo/at
>
>
>_______________________________________________
>AT mailing list
>Remembering Our Friend Cecil Monson 11-4-2005
>http://www.antique-tractor.com/mailman/listinfo/at


                    In the wide-open spaces of NE Oregon