what type of gas should i be useing
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My FE will run on crap 87 octane but will ping under heavy load. Completely useless towing with anything less than 92 in it (and I don't have the timing advanced more than the stock setting). I've read that older fuel was much different than what we have now and most older vehicles will need a higher octane to perform properly. I've found this to be the case even in my very low compression Austin Mini.
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My truck is tuned to factory timing, plug gap, etc. I have not tried to 'tweak' it for more power. I was having a number of issues with it previously and set everything to stock so I had a base to start at. The carb was horribly mis-tuned by the PO in an attempt to increase fuel mileage. That has since been corrected. Vac advance works, Pertonix electronic ignition removes the points, plugs are burning nicely now. I feel it's tuned adequately as the factory desired.
I just read in Vintage Truck magazine that gas is not only seasonally blended, but regionally as well. It's an interesting article. This may also have something to do with why my truck loathed 87 octane back in May/June when I had problems. I have not tried going back from 92 since. For what little I drive mine, it isn't that big of a cost issue, and when I'm towing I don't want any headaches.
Did my fuel at that time have more Ethanol in it? Entirely possible.
I just read in Vintage Truck magazine that gas is not only seasonally blended, but regionally as well. It's an interesting article. This may also have something to do with why my truck loathed 87 octane back in May/June when I had problems. I have not tried going back from 92 since. For what little I drive mine, it isn't that big of a cost issue, and when I'm towing I don't want any headaches.
Did my fuel at that time have more Ethanol in it? Entirely possible.
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#10
My truck is tuned to factory timing, plug gap, etc. I have not tried to 'tweak' it for more power. I was having a number of issues with it previously and set everything to stock so I had a base to start at. The carb was horribly mis-tuned by the PO in an attempt to increase fuel mileage. That has since been corrected. Vac advance works, Pertonix electronic ignition removes the points, plugs are burning nicely now. I feel it's tuned adequately as the factory desired.
I just read in Vintage Truck magazine that gas is not only seasonally blended, but regionally as well. It's an interesting article. This may also have something to do with why my truck loathed 87 octane back in May/June when I had problems. I have not tried going back from 92 since. For what little I drive mine, it isn't that big of a cost issue, and when I'm towing I don't want any headaches.
Did my fuel at that time have more Ethanol in it? Entirely possible.
I just read in Vintage Truck magazine that gas is not only seasonally blended, but regionally as well. It's an interesting article. This may also have something to do with why my truck loathed 87 octane back in May/June when I had problems. I have not tried going back from 92 since. For what little I drive mine, it isn't that big of a cost issue, and when I'm towing I don't want any headaches.
Did my fuel at that time have more Ethanol in it? Entirely possible.
I would look to a hot spot carbon buildup for the ping, or look to the advance springs being a little weak in the distributor.
You should see the crap they call gasoline here in Phoenix. It don't look like gas or smell like gas! But the 472 will run on the cheep crap all day and the crew's 360 (no ping on load ) ran on the cheap stuff with a little work on the distributor advance weights and springs.
Garbz
#11
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