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Thread: 300xs year differences
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10-03-2018, 10:00 AM #16
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10-03-2018, 10:17 AM #17
Aces is supposed to be good. I have no experience, but hear people rave about it.
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10-03-2018, 05:18 PM #18Wriggleys gum makes me think of boating, "Double your engines, Double your fun"
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10-03-2018, 07:03 PM #19Screaming And Flying!
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I can say these work, don't have your motor but anything with fresh MMT like
http://race-gas.com
http://www.royalpurpleconsumer.com/p...el-stabilizer/
Five gallons of toluene into 25-30 gallons fuel will also do it
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10-03-2018, 09:38 PM #20
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10-03-2018, 09:47 PM #21Screaming And Flying!
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Thats getting ^$! , at 85 the 1oz/gallon MMT only gets you to about 87. The race uses more in their directions and has the higher concentration version.
Last edited by FMP; 10-03-2018 at 09:50 PM.
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10-04-2018, 08:23 AM #22
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10-04-2018, 08:38 AM #23Screaming And Flying!
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My opinion is, knock,knock, who's there? New power head that's who......But, I was the village idiot that thought the 300 XS motors self corrected for octane. I believe from what I have read 89 and you might be ok. Below that and it's a no go.
Last edited by XstreamVking; 10-04-2018 at 08:45 AM.
83 V-King, 96 Mariner, 200 hp ff block 2.5 w/a 28p choppa
We gotta clean this liberal mess up, VOTE TRUMP TO MAGA!
Rebuild thread:
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http://www.screamandfly.com/showthre...cs.&highlight=
Videos
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10-04-2018, 08:38 AM #245000 RPM
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I wouldn’t do it, unless I had to. I mean really had too. I won’t even run 91 In mine. I totally understand that it might be possible.
for the amount of money these motors cost not a chance I’m willing to take. If your taking a trip that takes you too a place that only has 85, I would cancel the trip. That’s just my opinion.
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10-04-2018, 08:45 AM #25
NP, Is there an an airport close to any of your stops? You could contact the FOB and maybe get the staff to deliver 10 gallons of 100LL to mix with your 85 at a marina. Far fetched, but maybe an answer. Or get your seaplane buddy to stop at the marina and siphon some av gas out of it?
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10-04-2018, 09:02 AM #26Screaming And Flying!
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Heck leave the boat at home, use the float plane. Call the airport have my plane ready!
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10-04-2018, 09:12 AM #27
I have used the klotz octane booster. It actually says with boost gasoline by up to 10 numbers. I keep this with me to use in situations where I can only get 89 and have had no issues when using it.
http://www.klotzcanada.ca/images/pro...dfs/KL-602.pdf
10 Best Octane Boosters - Oct 201873 Reviews Scanned
RANK PRODUCT NAME SCORE 1 Klotz Octane Booster KL-628By Klotz 9.7
Triad V21 #002 - 15in DBR 300 xs
19' J-Craft - 175 Opti
18' Pontoon - 115 CT 4S
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10-04-2018, 09:17 AM #28
When I bought my 300xs I had +100 gallons of 87 octane fuel still in my 140 gallon tank. I posted a similar thread.
Finally got the idea to call Mercury customer service. The guy I spoke to said run it; the computer will adjust for it. He also said don't expect the same performance as premium fuel. The motor needs 91 octane to make 300hp.
I'll also add that you could probably call them 5 times and get different answers. So you may consider calling them for yourself.
BTW- my motor is a 2014. Not sure that matters but that's what I told them.
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10-04-2018, 09:18 AM #29Screaming And Flying!
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Pb, it says not alcohol compatible, does that include 10%? Be good with 91 shell and 10% toluene! Wouldn't need to mix too much of it
Last edited by FMP; 10-04-2018 at 09:24 AM.
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10-04-2018, 09:31 AM #30
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