There is a rather detailed post about tetraethyl lead usage about 6 months back. You do NOT need to use lead additive. Period. Remember, a good number of the F series and Letter series tractors were dual-fuel capable. Kerosene and distillate did NOT have lead, and when using these fuels, the engines ran alot hotter.
All tetraethyl lead did was to increase the octane rating of the fuel. This was done to allow higher compression and prevent pre-ignition of the fuel/air mixture. Lead build-up on valves was a problem when lead was used in gasoline. All letter series tractors are relatively low compression, low RPM, high tourque engines. The do NOT require high octane or lead additive.
I usually will add IMHO (In My Humble Opinion) to this type of post, but in this instance, I won't. There is no "opinion" involved in this one! :wink:
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Today's Featured Article - Stories From Old Farmer - by K. Pratt. Old Farmer, a.k.a. Dale Jensen began posting messages to our discussion forums at the grand age of 75. With extensive knowledge of farming and tractors, he valued the past and the ways that went with it. He shared these values with us until shortly before his passing. I spoke with Dale in his last days and requested his permission to share some of his stories with the readers of our magazine. He agreed, and provided the
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