Author Topic: Using unleaded fuel  (Read 6417 times)

brawny1

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Using unleaded fuel
« on: April 19, 2011, 06:56:17 AM »
New 9n owner here and I have heard that it is ok to use unleaded fuel in my tractor due to the hardened valve seats etc. Is there any truth to this? Also , any suggestions for a multi viscosity oil for the engine?

Thanks for the help,
Brian in Massachusetts

jamesfpop

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Re: Using unleaded fuel
« Reply #1 on: May 18, 2011, 06:12:28 PM »
The valve seats are hardened and no lead is fine.

Rotella is what I use, can't remember the vis. though.
JP

dyoungen

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Re: Using unleaded fuel
« Reply #2 on: June 04, 2011, 08:18:48 PM »
Rotella, isn't that for Diesels?

jamesfpop

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Re: Using unleaded fuel
« Reply #3 on: June 16, 2011, 07:54:15 PM »
Read on another forum that the detergents in the rotella multi vis is excellent for the tappets.

The viscosity depends on the condition of the engine.

I am not the expert, but if the thing maintains good oil pressure≈lower multi vis numbers/colder climates and SAE 30-40-50 for warm climates

Do some more internet research and decide which way you want to go.

With aircraft we always used phillips X/C until we got a new engine, then went with shell multi vis. It was air cooled, but the technology is 40's era for both.
JP

jamesfpop

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Re: Using unleaded fuel
« Reply #4 on: February 27, 2012, 10:02:36 AM »
Using sae30 and will continue.

Doing a proper oil change tomorrow and have decided to go with Multi vis 10w-30. Seems noone in the family has changed the oil in the poor 9n in forever. NOT GOOD! Will still use Rotella though.
« Last Edit: March 07, 2012, 01:22:10 PM by jamesfpop »