Additives? Do they help?..Ahhh, help what?

It all depends on your symantics, I call anti-freeze/anti-boil, like Prestone, as I lived in near Boston..Fall River to be exact, and now I have been in Florida where the days about now are 94-96 d. In Ma. The additve coolants, help , definately, and if you want to bring the freeze point a bit lower, then you can try the products you are speaking of.they will all alter the specific Gravity of H2O and thereby, altering boiling and freezing points. That is Plain ol' Physics,! I have been a rodder when only a 32' roadster was called a true ROD..and it kept me out of a lot of shows, as most of my cars were custom 1954 Chevies, 210 2-dr. sedan simi-customs..I used anything that I thought would save my engine in he winter as 6volts did not do the job, but, I upgraded the electronics for starting in the winter also, I also added a amsoil or now I use a full synthetic Mobil 1 for these hot days in Florida that do nOT quit.

One day I ran out of coolant, and I had to stop the car. A guy was waving at me from his house.."the grass under your car is on fire". was his words, so I used an additive that I saw on TV whereas, cars were all started with no oil and just the passing through of an additive, well this happened again as I lost my fluid on my 1965 Riv. and the oil was gone..wow!!!

With the oil additive, nothing caught fire, the engine did NOT overheat, at a temp, of over 200d....I drove it home and immediately locked it down.

I will say this for additives...Look, listen, study..if it works for you as it did for me..damn, you'll be a happy quacker, but, you really have nothing to lose but your engine!

I would have that hot day in summer with that 425 CID 465 FT/LBS torquer, and 2X 4 sitting on top. I must say this:I rebuilt that hi cammed 2x4 Buick myself and I checked everything that I could...if you use an additive..you might be happier for $5.00 every couple of weeks, (with the Arabs screwing us anyway)..it will help, ...SPECIFIC GRAVITY!..remember the term..if you add anything to plain water, your specific gravity will change and the ability to not boil over or freeze over will be on your odds. I started working on cars in 1962 when I was 14 and ready to get into my first 6 cyl. chevy, and put the most that I could into it,: a Corvette can into a 261" + .040 and .100 off od the head, and splits with 3 carbs on it..the greatest help you can give to an inline six(6) is to feed those end cylinders by adding extra carbs, then an extra lift and duration from the Corvette (6) meant I won 90% of every race against the V-8's ...no problem.

Boy, have times changed...I had a ball with my Chevies back then...and with my 1963-1965 Rivieras in the 1980's to retirement this year.

OH YES an ADDIVE WILL definately help!...BassPlaying:"Fourstring". Was it that far back??? Now, I play my guitars, and wait for the "call to home!".... Again: "Fourstrings"

Bass Playing "Fourstring"

Actually water disperses heat much faster than an antifreeze mix, this is why a lot of people in warmer climates will only run 25% antifreeze instead of 50.50 mix.

Same principle that a 10W oil will disperse heat faster than a 40W

The scam with the water wetter is you must drain all the antifreeze out.

Well if you run straight water it will cool better than an antifreeze mix anyway.

When I was at the oil company, one of my jobs was private label additives, its big business and its the same crap in different label and different dye and smell additives and you can buy the same thing off the shelf in one company name for $1.99 at Advance and the exact same crap in another label (much prettier for $14.95).

Have any of you noticed the oil companies do not have an additive except for Chevron, they have fuel additive call techron and it does work or they would not put their name on it.

If you want to buy an additive, take that money and buy a lottery ticket as your odds of getting something good is better with the ticket.