74se
Settling In
Posts: 118
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Post by 74se on Sept 19, 2010 12:20:14 GMT -5
Is it ok to mix leaded and unleaded gas together? Will it mess up the engine? I found a place close by that sells leaded gas and would like to run it in my stock 318. I also understand that leaded gas stays fresh along time, true?
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DynoDave
CO-ADMINISTRATOR
Motown Mopar-Wizard
Posts: 11,169
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Post by DynoDave on Sept 19, 2010 14:58:34 GMT -5
If you have an engine old enough that it does not have hardened valve seats, then there could be an argument made for using some of the leaded fuel. Otherwise, there is no benefit to you.
Tetraethyl lead was used as an octane booster, and had a cushioning effect on the valve face/seat interface. I've never heard anyone assert the the presence of/absence of lead makes a difference in shelf life.
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Post by canadian74se on Sept 19, 2010 23:22:19 GMT -5
Thats pretty neat that they sell it still. I've never seen it.
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Post by Jer on May 20, 2011 23:10:47 GMT -5
So does that mean you're too young to remember all of the cars on the road in the early 70's that had their "Unleaded Fuel Only" fill spouts "hollowed out" (i.e.: "modified" by their creative owners) so that the old style, fatter diameter, leaded gas pump nozzles would fit in them ?  |
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DynoDave
CO-ADMINISTRATOR
Motown Mopar-Wizard
Posts: 11,169
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Post by DynoDave on May 21, 2011 9:49:35 GMT -5
I never actually saw anyone do that, Jer, though I've heard of it. It will only work long term if the catalytic converter has been removed. The lead will destroy it in short order.
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Post by Jer on May 21, 2011 14:32:33 GMT -5
I never actually saw anyone do that, Jer, though I've heard of it. It will only work long term if the catalytic converter has been removed. The lead will destroy it in short order. SO WE THEY FOUND OUT !! (Nobody told us them, beforehand.) |
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Post by lunger on May 27, 2011 7:16:59 GMT -5
race gas is leaded, i been mixing for years.
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