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Old Feb 2, 2007 | 12:09 AM
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Default fuel additives

Does anyone use additives? I'm interested in fuel efficiency and pollution control.

Has anyone tried this stuff?

http://www.hotcatalyst.com/resources/empinfo.htm
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Old Feb 2, 2007 | 02:01 AM
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They dont work, all they do is drive the net cost of a gallon of gas more expensive. Others may say they do, but they dont! The only chemical that works in your tank is GAS
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Old Feb 2, 2007 | 07:18 AM
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Don't waste your time or money on such nonsense.
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Old Feb 2, 2007 | 08:40 AM
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If they actually worked- why wouldn't the gasoline companies jump on the opportunity themselves?
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Old Feb 2, 2007 | 08:42 AM
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Snake oil.
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Old Feb 2, 2007 | 08:54 AM
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I agree, Snake Oil. Best case scenario is you wasted your money and just fouled your spark plugs. Worst case is causing engine damage.
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Old Feb 2, 2007 | 10:15 AM
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Well, this brings up a nasty question. How do you reduce pollution output without robbing lots of hp, on a pre 74 car? Is converting to computer control and FI the only effective way?
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Old Feb 2, 2007 | 04:16 PM
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i couldnt care a bit about the environment, i have a small block that is going to make HP at the cost of the environment, and thats how i want it. Kalifornia lets NASTY dump trucks, school buses, and Deisels run the streets but yet the tell us "uh, well your going to have to get your 76 and up corvettes and anything for that matter, smogged until you die" wow....but they can let all these desiel p.o.s run the streets and nearly choke me out of my vehicle when they pull up to me and hit the gas....SCREW EMISSIONS. i make more emissions from burping and farting then my vette is going to make when i get the motor back in. Dont worry about emissions, no matter how hard you work to make your car better for the air, there are thousand of companies screwing the air up and paying big fines and not giving a rip. nothing we can do to change it, so go witht he flow. As far as fuel efficiency goes, just use Seafoam if your vette runs rough, now that stuff DOES work.
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Old Feb 2, 2007 | 10:30 PM
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damn...i gotta think up something wth this environmental crap sos i can make a mint like all those ******* are doing.....bet they dont have to wake up at 4:30 in the morning and go to work like i do
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Old Feb 2, 2007 | 11:34 PM
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i use a lead additive, but thats all.
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Old Feb 2, 2007 | 11:57 PM
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Originally Posted by another-user
i use a lead additive, but thats all.
Why?
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Old Feb 3, 2007 | 12:11 AM
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ive always been told that on an original motor that used lead, theres a chance of ripping the valve heads to shreads with out it. about 50% of the people say it will happen, the other 50% says it wont.

at 10 bucks a bottle thats good for about 250 gallons of gas, i figure why not. id rather be dumping cheap snake oil in and have nothing happen then find out i really did need it.
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Old Feb 3, 2007 | 12:53 AM
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Originally Posted by EVIL_GRIM
i couldnt care a bit about the environment, i have a small block that is going to make HP at the cost of the environment, and thats how i want it. Kalifornia lets NASTY dump trucks, school buses, and Deisels run the streets but yet the tell us "uh, well your going to have to get your 76 and up corvettes and anything for that matter, smogged until you die" wow....but they can let all these desiel p.o.s run the streets and nearly choke me out of my vehicle when they pull up to me and hit the gas....SCREW EMISSIONS. i make more emissions from burping and farting then my vette is going to make when i get the motor back in. Dont worry about emissions, no matter how hard you work to make your car better for the air, there are thousand of companies screwing the air up and paying big fines and not giving a rip. nothing we can do to change it, so go witht he flow. As far as fuel efficiency goes, just use Seafoam if your vette runs rough, now that stuff DOES work.
Amen. Nothing I love more then my "off road" non cat free breathing dual pipe exhaust spewing old Corvette.
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Old Feb 3, 2007 | 03:01 AM
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Originally Posted by Sunspot
Does anyone use additives? I'm interested in fuel efficiency and pollution control.

Has anyone tried this stuff?

http://www.hotcatalyst.com/resources/empinfo.htm
If efficiency and smog control are your goals- and that ain't a bad thing for all of us, then keep your car well tuned. Replace the air filter or clean the K&N. Don't postpone maintenance. Keep the tires inflated. Add a modern cat, if you don't have one. Don't look for miracle snake oil in a bottle.
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Old Feb 3, 2007 | 11:13 AM
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Originally Posted by another-user
ive always been told that on an original motor that used lead, theres a chance of ripping the valve heads to shreads with out it. about 50% of the people say it will happen, the other 50% says it wont.

at 10 bucks a bottle thats good for about 250 gallons of gas, i figure why not. id rather be dumping cheap snake oil in and have nothing happen then find out i really did need it.
I can see your point about conflicting info.

Ask the 50% that say it will happen for actual examples, real proof instead of just 'I heard of a guy who knows a guy' BS. There's no known examples of valve seats on a Corvette motor being damaged by lack of lead.

More importantly- if the additive you're using has real lead in it, (and most don't) diluting one bottle in 250 gallons of gas is having no effect. You'd need three or four bottles PER TANK OF GAS to come back to the levels of lead in gasoline equivalent to when your car was new.

Save your money.
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Old Feb 3, 2007 | 11:29 AM
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Originally Posted by another-user
ive always been told that on an original motor that used lead, theres a chance of ripping the valve heads to shreads with out it. about 50% of the people say it will happen, the other 50% says it wont.

at 10 bucks a bottle thats good for about 250 gallons of gas, i figure why not. id rather be dumping cheap snake oil in and have nothing happen then find out i really did need it.

I had a '69 Grand Prix with a 400 ci engine designed for lead which I bought new. It had about 75k miles on it when lead was eliminated from gasoline in the mid '70's. I sold the car in 1997 with 250K miles on it. Long story short, I used unleaded in the car for 175k miles and never had a problem with the engine. Actually, it had never been apart.
IMO, you're wasting you $.
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Old Feb 3, 2007 | 11:31 AM
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Originally Posted by another-user
ive always been told that on an original motor that used lead, theres a chance of ripping the valve heads to shreads with out it. about 50% of the people say it will happen, the other 50% says it wont.

at 10 bucks a bottle thats good for about 250 gallons of gas, i figure why not. id rather be dumping cheap snake oil in and have nothing happen then find out i really did need it.
My father has a 70 vette, and he said he had to have a valve job done in 85 due to no longer using leaded gas or lead additive. The lead coats the valves and seats providing lubrication and cushioning similar to how cartilage sits between your joints. His vette was his daily driver from 72 to 78, and he also went on a few cross-country road trips with it, so I guess your damage time may vary.
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Old Feb 3, 2007 | 11:31 AM
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I agree with the above.
This is also why the pre 1970 cars are elevating in value. That was before the wacko environmentalists started robbing our freedoms...and HP! Save your money!
Now there saying...there's a 90% chance that us humans may be contributing to global warming? That's BS!
The solution to pollution is dilution.
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Old Feb 3, 2007 | 11:46 AM
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Originally Posted by Sunspot
Well, this brings up a nasty question. How do you reduce pollution output without robbing lots of hp, on a pre 74 car? Is converting to computer control and FI the only effective way?
Pre-74 is smog exempt in Kalifornia. Just tune it up well. That's all you can do.
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Old Feb 3, 2007 | 11:48 AM
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Originally Posted by EVIL_GRIM
i couldnt care a bit about the environment, i have a small block that is going to make HP at the cost of the environment, and thats how i want it. Kalifornia lets NASTY dump trucks, school buses, and Deisels run the streets but yet the tell us "uh, well your going to have to get your 76 and up corvettes and anything for that matter, smogged until you die" wow....but they can let all these desiel p.o.s run the streets and nearly choke me out of my vehicle when they pull up to me and hit the gas....SCREW EMISSIONS. i make more emissions from burping and farting then my vette is going to make when i get the motor back in. Dont worry about emissions, no matter how hard you work to make your car better for the air, there are thousand of companies screwing the air up and paying big fines and not giving a rip. nothing we can do to change it, so go witht he flow. As far as fuel efficiency goes, just use Seafoam if your vette runs rough, now that stuff DOES work.
Reply



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