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Harry Ferguson Tractors Discussion Forum
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Lead Additive

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RonL

08-06-2005 18:36:08




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I have had my TO 30 now for 3 years and have been using gas lead additive. I believe the engine is original and has not been rebuilt. Just wonder what the rest of you guys think, since I belive the original engines did not have hardened valves or seats. Thanks.




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Delbert from Lincoln

08-07-2005 18:06:06




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 Re: Lead Additive in reply to RonL, 08-06-2005 18:36:08  
I started a big discussion on this a couple of months ago. Just like now people are undivided. I use it in my tractors, 48 & 58, and will continue to use it. We get a big one at Orschen farm supply and pour it into the big tank when we order fuel. The action of the gas going into the tank should mix it.



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gshadel

08-07-2005 08:09:51




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 Re: Lead Additive in reply to RonL, 08-06-2005 18:36:08  
Ron, lead additives question is like asking which is the best oil, everyone has their own opinion.
My opinion is... lead additives were originally intended to boost octane for high compression engines. I remember when my Dad used to by "high test" gas with tetraethyl lead to sport around in his GTO when I was a kid. Your Ferggy doesn't have a high compression engine. Some guys say the lead additive helps lubricate valves or something like that... which the additive people would like you to believe. Your Fergie was hardened exhaust valve seats, runs rich under load (by design), and was made to run on cheap 1950's era gas. Gas quality and consistency is a LOT better today than back then. Don't waste your money on that stuff. If pouring additives into your gas makes you feel better, add Sta-Bil, Marvel Mystery oil, or similar products to keep your gas and carb cleaned-out, especially if your gas sits in the tank for long periods of time.


George

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Jerry/MT

08-07-2005 12:50:53




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 Re: Lead Additive in reply to gshadel, 08-07-2005 08:09:51  
Lead additives were used to boost Octane rating 's of gasoline and they had the added benefit of causing deposits that "cushioned" the valve seat from closing impact. In the later '60's hardened valve saets were installed in production gasoline engines because leaded gas was going to be phased out. There was a concern that without tetraethyl lead older vehicles without hardened valve seats would be damaged if run on unleaded gas. Most rebuilders rebuilt old engines with hardened seats and to my knowledge there never was the problem that the experts expected. Maybe the "cushioning" effect was non-existent or over rated. That's my bit of trivia for the day!

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Duner Wi

08-06-2005 19:12:50




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 Re: Lead Additive in reply to RonL, 08-06-2005 18:36:08  
I have been using lead additive substitute since the real lead went away and don"t think I have damaged anything yet. Costs $5.00 a year or so. One once treats 10 gallons,most every one else will tell you to forget about lead substitute.



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steveormary

08-06-2005 20:44:05




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 Re: Lead Additive in reply to Duner Wi, 08-06-2005 19:12:50  
I quit the lead additive and started using Sta-Bill. Little Fergie run better.

steveormary



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Gregg/Ohio

08-07-2005 19:43:24




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 Re: Lead Additive in reply to steveormary, 08-06-2005 20:44:05  
Running a additive will do no harm to your engine.,but..... . As a engine rebuilder shop owner here, Your TO-30 - and all TO-35's (not sure about TO-20's) Have hardened Exaust seats from factory,so have at it,they are very happy with the current gasolines available. Gregg



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Bill Brox

08-08-2005 13:54:02




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 Re: Lead Additive in reply to Gregg/Ohio, 08-07-2005 19:43:24  
Hi, I am sorry, I do not want to start a discussion here, but when did the lead come.

I have been told that in England they did not see lead in the petrol / gas until 1948, and the engine in the TE 20 or TEA 20 was developed before that, and besides, Ferguson exported tractors to a lot of the third world countries that did not get lead in the petrol / gas until Ferguson had ended their production of those tractors.


Bill

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