[ta6point6]

After watching Visegrip garage so much I decided to try some Berrymans B12 chemtool in my 79 Truck. The truck starts up just fine and afr hovers around 13.9 when going to junkyards. After a few hours of sitting it starts up but puffs out white smoke for 30 seconds or less. Well I ran some Berrymans through truck and I have to say I am thinking it has made a noticeable improvement. There is no longer smoke on start up and initial acceleration has improved. I added this when I went to swap meet so 100 miles up and back. I am thinking of putting this in all vehicles now.
I use Hyper-lube zddp additive with conventional oil in Trans Am nothing else. I use FR3 friction reducer in Avalanche and that has stopped lifter tick.
Anyone else use additives that you feel have made a difference in your vehicles?

[77 TRASHCAN]

I've known about Berryman for a long time.
I used to wonder if any of the additives did anything. I started working at a parts store in 1985. Some Tim after I had been there for a while, a customer came in and bough a can of B12. He was a regular. His Lincoln was running rough, he said. He had parked right outside the door, left the engine running.
He and I were carrying on a conversation, as he poured the B12 in.....right then the engine quit sputtering and smoothed out, perfectly.

The Italian tune up can help. Beware of the exhaust fumes it makes, though, they are vile!!!

[napster]

I use Royal Purple Max Boost. It contains a 3 point octane increase, lead additive and a fuel stabilizer. It it used in my '70 TA & will be used in my '69 GTO. The '70 has stock RAIV heads and the GTO will have RAII heads.

[72projectbird]

I've used both B12 and Seafoam. Both definitely help, granted theres nothing wrong mechanically with the engine.

Ran some through a 455 that had cranking psi hovering around the 205-210psi mark. After running 2 cans of seafoam down the carb, the compression test was now showing numbers around 195psi. Definitely helped with detonation.

[goat69SD]

I like Seafoam and I use Stabil in all my fuel tanks. Seafoam really helps the carbs run smooth. I also add a small amount of ZDDP to engine oil. The old lifters need more zink than modern oil has.

[Half-Inch Stud]

I use 87 Octane. Only use 89 at the track, so what ever the 2-point bump is, is what i use.

[59safaricat]

Used one ounce of seafoam per gallon for the lawnmower and 4 stroke weed eater for 23 years since non ethanol gas was not available in commiefornia. Always started up quick, ran smooth, and never had the carbs apart on either. Since I moved out of that politically insane state 3 years ago, I now purchase non ethy fuel but still occasionally add seafoam to the gas cans every 3rd fill-ups for insurance.

I have fixed several small engines I got for free or saved from the curb that ran (quite badly) by just pouring a good amount of seafoam in the gas tank and running the engine until the tank is empty. It has fixed many lean miss issues on those and saved me from rebuilding/replacing the carb.

[dhcarguy]

Originally Posted by napster

I use Royal Purple Max Boost. It contains a 3 point octane increase, lead additive and a fuel stabilizer. It it used in my '70 TA & will be used in my '69 GTO. The '70 has stock RAIV heads and the GTO will have RAII heads.

When they advertise a "3 point" increase, should they really say "point 3" (.3) increase??

[jhein]

Originally Posted by dhcarguy

When they advertise a "3 point" increase, should they really say "point 3" (.3) increase??

They claim it's 3 numbers, or 30 "points".

https://www.royalpurple.com/product/...ctane-booster/

I've never used RP but I did use this when I had my ironheads:

https://torcoracefuel.net/collection...co-accelerator

Now that I have AL heads and a HR cam I don't plan on any additives.

[bluebandit]

I've been using Mechanic in a Bottle for several years now. It's got all but one small engine back up and running. Helps on a surging engine too. My log splitter wouldn't smooth out unless I applied a bit of choke, ran part of a bottle thru it and smoothed it right out. Also use Seafoam and Berrymans and a bottle of STP at each oil change, cant say it helps but ive never had a cam go flat either.

[Formulabruce]

Octane booster is a big scam. Yes, a " 3" point gain is only " .3".
You can toss in more alcohol for way less money, and it will raise octane, even though it sucks.
If you Really want more octane.. buy a gallon of Touelene and mix your own fuel. That would be real.
Octane boosters, as well as Cetane boosters RETARD the flame ignition in an engine. This allows more fuel and more timing, which will give more power, but the octane booster is NOT nitrous!!

[locomotivebreath]

Jim Beam

[KS circutguy]

I like the Gumout with P.E.A.

https://gumout.com/fuel-additives/re...ystem-cleaner/
You want the P.E.A. additive in whatever product you use.
Works well in my old BMW E36 328I with 230,000 miles.

[jhein]

Originally Posted by Formulabruce

Octane booster is a big scam. Yes, a " 3" point gain is only " .3".

I know that back in the day that was definitely true. They advertised "points" increases in octane, but when you read the fine print it is only a tenth of a full number. 0.1 vs 1. But these newer products are claiming full number increases. I don't know if that's false or not, what do you think?

[72projectbird]

Originally Posted by Formulabruce

Octane booster is a big scam. Yes, a " 3" point gain is only " .3".
You can toss in more alcohol for way less money, and it will raise octane, even though it sucks.
If you Really want more octane.. buy a gallon of Touelene and mix your own fuel. That would be real.
Octane boosters, as well as Cetane boosters RETARD the flame ignition in an engine. This allows more fuel and more timing, which will give more power, but the octane booster is NOT nitrous!!

I've never mixed my own with Toluene, but it's always been something I wanted to experiment with.

Usually if I'm hitting the track, or just plan on beating on the cars (the GN mostly) I'll add a few gallons of 100LL from the local airport, or Cam2 (110 leaded) from a local gas station.

I can calculate the octane in the tank by knowing what I have in their for 93, and how many gallons of race fuel added. Definitely a noticeable improvement in reducing knock retard, and allows me to turn the boost up some. I'm installing alky injection this winter though, so I probably can get by with just pump 93 on 22-24psi.

[Formulabruce]

Originally Posted by jhein

I know that back in the day that was definitely true. They advertised "points" increases in octane, but when you read the fine print it is only a tenth of a full number. 0.1 vs 1. But these newer products are claiming full number increases. I don't know if that's false or not, what do you think?

Easy to get those points with alcohol, its just that you would need so much more fuel ( for increased power) because alcohol has little density. So maybe they have alcohol.

[geeteeohguy]

I have used Bars Leaks on older cars (works), KW Head and Block seal (works miracles), KW Trans X (works miracles), B-12 (works), Marvel Mystery Oil in fuel (low amounts to help prevent ethanol-induced corrosion), and Octane Supreme 130 (which actually works because it is TEL). When I was in the industry we used a Wynns fuel injection cleaner service for port fuel injection systems and it made a noticeable difference in high mileage cars with coked up injectors. Have used Rislone many years ago for gummed up lifters in an old car, and it worked as well. Of course, putting the car into regular service doing highway duty instead of short, in-town commutes may have turned the trick, as well.

[Tom Vaught]

Originally Posted by 72projectbird

I've never mixed my own with Toluene, but it's always been something I wanted to experiment with.

Usually if I'm hitting the track, or just plan on beating on the cars (the GN mostly) I'll add a few gallons of 100LL from the local airport, or Cam2 (110 leaded) from a local gas station.

I can calculate the octane in the tank by knowing what I have in their for 93, and how many gallons of race fuel added. Definitely a noticeable improvement in reducing knock retard, and allows me to turn the boost up some. I'm installing alky injection this winter though, so I probably can get by with just pump 93 on 22-24psi.

Gale Banks ran Toluene in his race boats for several years under boost.
Works and is easy to buy at a paint store. That being said, several
friends are no longer on this earth from running that stuff.

E-85 is a much better solution for Boost stuff.

Tom V.

[Lee]

Former member Eric Douthitt (Tempest455 - what ever happened to him???) was some sort of fuel engineer. He had a concoction of toluene, and I think xylene and some other things, which could be added to actually increase octane. But it was a WAY more than a pint that you had to add.

[72projectbird]

Originally Posted by Tom Vaught

Gale Banks ran Toluene in his race boats for several years under boost.
Works and is easy to buy at a paint store. That being said, several
friends are no longer on this earth from running that stuff.

E-85 is a much better solution for Boost stuff.

Tom V.

I wish I could run E85, but virtually no stations near me have it. I think the closest would be about 60 miles round trip. :/

I guess it's alky injection for me