Fuel Additive help. What to use and what not to use?
08-11-2008, 10:03 AM
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Fuel Additive help. What to use and what not to use?
I useually use additives in my other vehicles and was wondering if its ok to use these on the rotary engine. What do the other members on this site use and does it help them out? Marvel Mystery Oil? Engine Restore? B12 is the other one i use i think.
08-11-2008, 10:13 AM
#3
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Don't use any additives. Just buy name brand gas, and don't fill up if there's a tanker at the gas station. That goes for all your vehicles.
Someone will probably respond with premix. That's a different deal than additives.
Ken
Someone will probably respond with premix. That's a different deal than additives.
Ken
08-11-2008, 12:32 PM
#4
Got Another Rotary
Summary here:
https://www.rx8club.com/showpost.php...&postcount=968
More good data here on Premix/additves:
https://www.rx8club.com/series-i-tech-garage-22/gas-oil-premix-thread-99636/page20/
https://www.rx8club.com/showpost.php...&postcount=968
More good data here on Premix/additves:
https://www.rx8club.com/series-i-tech-garage-22/gas-oil-premix-thread-99636/page20/
08-12-2008, 11:36 AM
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i know that premix does absolutly nothing according to my local mazda and rotary tech at the dealer ship and i already had to replace the whole exhaust and engine and i think it was done over buy the premix
08-12-2008, 11:43 AM
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yeah i knew about that, Dont fill up either during the middle of the hot day because a portion of the fuel evaps and it turns into fumes. Dont squeeze the trigger all the way because all your gonna do is get some of the fumes to to mess up the computer reading how much fuel your getting making it read more. I always pull the trigger to one or maybe two clicks when you put it on automatic.
08-12-2008, 12:24 PM
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08-12-2008, 11:38 PM
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wow,
lots of bad info here.
i would say that b&g 44k every 10k miles is a great idea. and run the **** out of it on that tank.
and if you think premix might be good for you.
i would read anything jax rx8 has posted, and make a choice. it would be win, win.
beers
lots of bad info here.
i would say that b&g 44k every 10k miles is a great idea. and run the **** out of it on that tank.
and if you think premix might be good for you.
i would read anything jax rx8 has posted, and make a choice. it would be win, win.
beers
08-12-2008, 11:40 PM
#10
yeah i knew about that, Dont fill up either during the middle of the hot day because a portion of the fuel evaps and it turns into fumes. Dont squeeze the trigger all the way because all your gonna do is get some of the fumes to to mess up the computer reading how much fuel your getting making it read more. I always pull the trigger to one or maybe two clicks when you put it on automatic.
did you get that from a friend on the internet???
fail.
beers
08-13-2008, 05:31 AM
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08-13-2008, 12:18 PM
#13
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Some fumes come out. But that doesn't mean you need to be careful with your "clicks" when you fill your tank. You don't have an airtight seal between the nozzle and your filler tube. There are always fumes in the tank unless it is 100% full. The fumes get pushed out as you fill. It doesn't matter how *fast* they get pushed out (within reasonable limits built into the pump). The fumes escape through the filler tube, and they either enter the atmosphere, or in more reasonable places like California, they are recaptured by a device that fits over the nozzle. Fumes that accumulate once the cap is tightened are handled by the evaporative control system of the car.
There are 2 things to understand about fueling when it's hot, and maybe this is where you get confused.
1, the cooler gas from the underground tank can expand a bit once it sits in your tank on a hot day. So if you fill up, take a VERY short drive, and park, then there is a potential for liquid gasoline (instead of fumes) to get into the evaporative control system and cause problems. This is probably only an issue if you deliberately overfill your tank.
2, unless the pump has a temperature correction built-in, the measurement can be off and you can get slightly less gasoline than if you had filled up when it was cool.
08-13-2008, 12:35 PM
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Gasoline is stored in underground storage tanks. The gasoline inside them is kept at a static temperature by the earth. What little is in the hose could heat up, but the amount that would be heated is insignificant.
08-13-2008, 12:43 PM
#15
Nubo
Today, all areas of the US recapture gas fumes as a car is being fueled.
When filling your tank, you aren't suppose to fill completely to the top of the filler neck. You are only to fill until the nossil clicks off. This leaves room for expansion and keeps the charcoal filter, in the evap system from being polluted.
Today, all areas of the US recapture gas fumes as a car is being fueled.
When filling your tank, you aren't suppose to fill completely to the top of the filler neck. You are only to fill until the nossil clicks off. This leaves room for expansion and keeps the charcoal filter, in the evap system from being polluted.
08-13-2008, 05:14 PM
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Nubo
Today, all areas of the US recapture gas fumes as a car is being fueled.
When filling your tank, you aren't suppose to fill completely to the top of the filler neck. You are only to fill until the nossil clicks off. This leaves room for expansion and keeps the charcoal filter, in the evap system from being polluted.
Today, all areas of the US recapture gas fumes as a car is being fueled.
When filling your tank, you aren't suppose to fill completely to the top of the filler neck. You are only to fill until the nossil clicks off. This leaves room for expansion and keeps the charcoal filter, in the evap system from being polluted.
I think we agree about not deliberately overfilling.
08-13-2008, 05:22 PM
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https://www.rx8club.com/showthread.p...re#post1397005
The difference would be tiny, agreed. But not zero, which is why I used the word "slightly". And there are places where the pumps are required to be temperature compensating, by law.
08-14-2008, 06:08 PM
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nope but the gas stations aint all hidden under trees either. I never been to florida but im pretty sure its like the concrete jungle over there and not like a amazon
08-14-2008, 06:10 PM
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here is a lil info on saving at the pump to help clear things up. I just search and i found some info. notice number four on there.
http://www.squidoo.com/saveatthepump
http://www.squidoo.com/saveatthepump
08-14-2008, 06:15 PM
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www.gasbuddy.com is alot of help too. It covers the U.S. and Canada as well
08-14-2008, 06:42 PM
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http://www.youtube.com/watch?v=8MlF1...eature=related
Number six: Cooler Temps Means Less Vapors
Number six: Cooler Temps Means Less Vapors
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