Turbinator Posted August 19, 2017 Share Posted August 19, 2017 Gents, I use Ethanol free gasoline in my 63 Riviera and I feel the 401 nailhead seems to like the ethanol free gasoline. RRB Link to comment Share on other sites More sharing options...
RivNut Posted August 19, 2017 Share Posted August 19, 2017 If the octane ratings are the same, there's not much noticeable difference. The biggest difference you'll see is if you let the car sit, evaporatin from the carb bowl, or your gaskets start to deteriorate because of the ethanol and your carb starts leaking. You will notice a difference if you use higher octane fuels. My $.02. Link to comment Share on other sites More sharing options...
NC1968Riviera Posted August 20, 2017 Share Posted August 20, 2017 I only run ethanol free gas in my classics. Link to comment Share on other sites More sharing options...
EmTee Posted August 20, 2017 Share Posted August 20, 2017 Ethanol free -- your gas tank will appreciate it. Link to comment Share on other sites More sharing options...
riv2x4 Posted August 21, 2017 Share Posted August 21, 2017 It would cost me half a tank to get to where ethanol free is sold. 1 Link to comment Share on other sites More sharing options...
KongaMan Posted August 21, 2017 Share Posted August 21, 2017 I did an admittedly non-scientific investigation of ethanol free gas in some of my travels the last couple of years. I saw no increase in economy, and the butt dyno didn't register any greater power. What I did find was that the marginal cost for that last 10% of gas far exceeded the base price for the first 90%. Link to comment Share on other sites More sharing options...
Sleep Posted August 21, 2017 Share Posted August 21, 2017 The closest filling station to me is a 7min drive but they've got leaded gas for folks gassing up their watercraft and such. Should I use that stuff or just go for the highest octane available? Link to comment Share on other sites More sharing options...
Turbinator Posted August 21, 2017 Author Share Posted August 21, 2017 4 hours ago, KongaMan said: I did an admittedly non-scientific investigation of ethanol free gas in some of my travels the last couple of years. I saw no increase in economy, and the butt dyno didn't register any greater power. What I did find was that the marginal cost for that last 10% of gas far exceeded the base price for the first 90%. Mr. Konga Man, I've had some bad luck with water in my gasoline I run in my small engines. I keep up our property with the numerous Stihl, Echo, and Gravely stuff. The water from the ethanol gasoline messes up the carb's and fuel lines. now I drain the small engines as often as I can and certainly at the end of the season for hedge trimmers and Snowblowers. i figure with my luck I'd have problems with my Riv sitting around with ethanol gasoline so I haul the gasoline in my pick up and trailer about 100 gallons at a time. I drive up to PA and back to central Maryland and transfer to barrels I have on the ground. I keep the barrels dry dry. ( Maryland has so m e crazy environmental regulations that make your head swim.) im not in the ethanol free gasoline for power or economy, but for a hopefully better running engine. I could be wrong and just acting like an OLD Nellie, but it s e e m s to me everything runs better. thank you Red Riviera Bob Link to comment Share on other sites More sharing options...
Turbinator Posted August 21, 2017 Author Share Posted August 21, 2017 14 minutes ago, Sleep said: The closest filling station to me is a 7min drive but they've got leaded gas for folks gassing up their watercraft and such. Should I use that stuff or just go for the highest octane available? Sleep, if your car runs ok with the ethanol gasoline no reason to waste money. I get gasoline with water and my little small engines don't like it. I figure the Riv would like as high octane and less contaminants ( corn alcohol ). It's my personal opinion with no kind of study done at all. I was just curious to see what everyone might be doing. thank you for your input. Red Riviera Bob Link to comment Share on other sites More sharing options...
Turbinator Posted August 21, 2017 Author Share Posted August 21, 2017 8 hours ago, riv2x4 said: It would cost me half a tank to get to where ethanol free is sold. Makes plenty of sense to use what you are using if the ethanol free gas is impractical to obtain. thank you Red Riviera Bob Link to comment Share on other sites More sharing options...
Turbinator Posted August 21, 2017 Author Share Posted August 21, 2017 On 8/20/2017 at 4:54 AM, NCRiviera said: I only run ethanol free gas in my classics. I'm in the same boat with my Riv. I also run ethanol free gas in my small engines... Link to comment Share on other sites More sharing options...
Turbinator Posted August 21, 2017 Author Share Posted August 21, 2017 On 8/19/2017 at 2:02 PM, RivNut said: If the octane ratings are the same, there's not much noticeable difference. The biggest difference you'll see is if you let the car sit, evaporatin from the carb bowl, or your gaskets start to deteriorate because of the ethanol and your carb starts leaking. You will notice a difference if you use higher octane fuels. My $.02. On 8/19/2017 at 2:02 PM, RivNut said: If the octane ratings are the same, there's not much noticeable difference. The biggest difference you'll see is if you let the car sit, evaporatin from the carb bowl, or your gaskets start to deteriorate because of the ethanol and your carb starts leaking. You will notice a difference if you use higher octane fuels. My $.02. Ed, I'm not a scientist nor expert on fuels, BUT I'm getting a lot of bad gasoline in Maryland with water. My small engines were getting killed with the ethanol gasoline. i learned how to keep the small engines and their carbs empty enough to get relief. The amount of moisture ethanol attracts is surprising. L o n g story short. I use ethanol free gas in my Riv and small engines. I've had better luck. Red Riviera Bob Link to comment Share on other sites More sharing options...
NC1968Riviera Posted August 21, 2017 Share Posted August 21, 2017 I have been adding octane booster when I fill up since the ethanol free gasoline I get is only 89 octane. I also put some lead substitute additive but I don't know if there is any benefit to adding it. What is the consensus on lead and octane boosters? Link to comment Share on other sites More sharing options...
Turbinator Posted August 23, 2017 Author Share Posted August 23, 2017 On 8/21/2017 at 5:00 PM, NCRiviera said: I have been adding octane booster when I fill up since the ethanol free gasoline I get is only 89 octane. I also put some lead substitute additive but I don't know if there is any benefit to adding it. What is the consensus on lead and octane boosters? Wish I could help on this question. It had occurred to me to put a lead additive in my gasoline, but not an octane booster. Around central Maryland there are the old type gasoline stations that have super high octane racing fuel they sell by the gallon. I heard once it was $8.00 a gallon. Link to comment Share on other sites More sharing options...
rapom Posted August 23, 2017 Share Posted August 23, 2017 I start running it about two tanks before storage.( I drive a lot so it only takes about 2 weeks to run through two tanks) Also use it in my small engines. Link to comment Share on other sites More sharing options...
RivNut Posted August 23, 2017 Share Posted August 23, 2017 Lead additive is not necessary. There's enough nickle content in the iron. You'll never see recessed exhaust valves in a nailhead. Don't let anyone talk you you into installing hardened valve seats. You don't need them and chances are, you'll cut into the water jacket. Link to comment Share on other sites More sharing options...
Sweet64rivi Posted August 27, 2017 Share Posted August 27, 2017 Here's a link to a website that lists gas stations by state that sell non ethanol pure gas: www.pure-gas.org . You can also take a couple 5 gallon gas cans down to the local airport and buy some 100LL octane jet fuel. My riv loves the high octane and the added upper cylinder lube. Link to comment Share on other sites More sharing options...
RivNut Posted August 27, 2017 Share Posted August 27, 2017 Is there a difference between 91 octane rated "ethanol" based gas and 91 octane "ethanol free" based gas? Isn't octane octane? "PureGas" evaporates more quickly and causes gasket materials to break down over time, but the octane ratings are the same. If you haven't rebuilt that old carb with new ethanol proof gaskets, perhaps it's time. Link to comment Share on other sites More sharing options...
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