gas additive

kkohls · Mar 17, 2012

Farmall C question: Do I need to add an additive to the gas ? I know these tractors were built when LEADED gasoline was in use to cut down on engine knocking.

Kevin

David G · Mar 17, 2012

No, The gas has high enough octane, make sure your timing is correct.

CNKS · Mar 17, 2012

Been on this forum for about 13-14 years. This question has been asked several times a year. The answer is no. Check the archives for verification.

old · Mar 17, 2012

Would you believe the lead stuff they sell has no lead in it and it is pure and simple a snake oil type thing

mkirsch · Mar 17, 2012

I don't believe anyone has ever said that "lead substitute" has tetraethyl lead in it. It's lead SUBSTITUTE, meaning the substance in the additive is a replacement for tetraethyl lead.

That said, lead substitute is a waste of money.

pete 23 · Mar 17, 2012

Some fuel suppliers will try to convince you that it is needed but it is not. IH actually strongly recommended using non leaded gasoline way back in the 60's. It still had to meet their octane specs though which was usually the hang up back then.

Anonymous-0 · Mar 17, 2012

Kevin most of these tractors were build when "tractor fuel/distillate" was used and it contained NO LEAD. Lead was used as an octane booster even the cheapest 87 octane gas today is higher in octane than most leaded gas was, at least what was then called regular.

504 · Mar 17, 2012

When they took the lead out of the gas and raised the price, my Dad told me they raised the price of gas when they started adding it in the 50s

Anonymous-0 · Mar 18, 2012

GM was a big pusher of ethyl in the 30s. More compression raised the octane requirements and lead was the fastest way to get it. To keep this a little tractor related; Oliver 80 needed 80 octane gas, 70 needed minimum 70 octane.

Anonymous-0 · Mar 18, 2012

You don't need lead additive, but if your tractor sits around for awhile, you might want to add E10 treatment to slow down phase separation. Since our tanks use open venting, the gas can phase separate in 30 days.

bobs old iron · Mar 18, 2012

as others stated, you don"t need lead, i would be worrying about ethanol/alcohol in the gas, if your state puts it in like some,that will make the gas go bad after setting in tank for long periods of time.

gene bender · Mar 18, 2012

No additive is needed ive been running the ethanol gas for 35 yrs in that engine with no problems even let them set all winter and they start in the spring with the same gas.

randy hall · Mar 18, 2012

so the 90 oliver needed 90 octane gas ? you are right that the 70 was built to use 70 octane gasoline.

NoNewParts · Mar 18, 2012

naw, no 'lead' additive needed
These old tractors are pretty forgiving on fuel
My tractors get all the 'old' stuff from my small engines,
straight gas, alcohol gas, chainsaw gas, whatever
blend it in, the tractor doesn't care
as long as it's[b:029e268ecf] clean[/b:029e268ecf]

Anonymous-0 · Mar 18, 2012

NAH, the Oliver 90 was the low compression kerosene burner, the 99 model was the gasoline engine, have no owners manuals on them so maybe they could burn anything.

Anonymous-0 · Mar 18, 2012

Don't know why they 70 & 80 were both gas & kerosene and the 90/99 had seperate designation.

Ken Ind. · Mar 19, 2012

Been running my old girls on no lead for along time with no problems.

gas additive

kkohls

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David G

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CNKS

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old

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mkirsch

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pete 23

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Anonymous-0

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504

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Anonymous-0

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Anonymous-0

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bobs old iron

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gene bender

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randy hall

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NoNewParts

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Anonymous-0

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Anonymous-0

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Ken Ind.

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