New Amsoil Coolant
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Glad to see another PG antifreeze on the market. Actually I was disappointed when I looked the the difference in the LD50, EG LD50: 20000 mg/kg, PG LD50: 4700 mg/kg. Of course, the LD50 is a crude, barbaric test.
I used this coolant when it first came out in my 88 Camry and 92 p/u both water pumps started leaking with in a month . Good thing the color matches the Toyota coolant cause the p/u was 6 months oil and warranty covered the water pump. I can't prove the coolant caused both water pumps to leak but I won't use this product.
[ December 02, 2004, 11:35 AM: Message edited by: Steve S ]
[ December 02, 2004, 11:35 AM: Message edited by: Steve S ]
"...Good thing the color matches the Toyota coolant cause the p/u was 6 months oil and warranty covered the water pump..."
The Amsoil PG antifreeze/coolant is specified as pale yellow. I thought Toyota antifreeze/coolant is red.
The Amsoil PG antifreeze/coolant is specified as pale yellow. I thought Toyota antifreeze/coolant is red.
If it is usable as a diesel antifreeze, it's not nitrate-free.
It sounds a lot like Zerex Extended Life Antifreeze/Coolant:
https://www.valvoline-technology.co...85256ae300727d2b85256c450045b939?OpenDocument
including the results of the corrosion tests.
I'd be a bit concerned about "can be used for seven years or 250,000 miles in passenger cars, light-duty trucks, vans and recreational vehicles .... seven years or 750,000 miles in
over-the-road diesel trucks."
The inhibitor additive levels to achieve that without replenishing the additives can cause some serious side effects, including erosion of water pump impellers and damage to water pump seals.
Maybe it has been reformulated as I tried it when it was first introduced the color was kinda purple.
Shame it didn't out a few months sooner. I just did a flush and new coolant in my Dakota.
Propylene glycol antifreeze/coolant has low dog/cat toxicity but high Human toxicity. Of course most know that Ethylene glycol has high dog/cat toxicity but low human toxicity. Frankly, I’m not quite sure why Propylene glycol is considered “green”, environmental safer antifreeze. It all seems silly to me.
I wouldn't say EG has low human toxicity. Where are you getting your information?
PG does NOT have a high human toxicity. It is found in children's cough syrups.
Sorry Stinky. My comments were in error. Double-checked my SAX manuals, and indeed EG is significantly more toxic than PG in animals (including humans). My apologies...
I just bought 2 cases and changed my dads Voyager and my 98 Taurus vulcan. The stuff is yellow in color and the old Amsoil was purple.
I have had good luck with the old stuff. It looks like their antifreeze is up to snuff with other stuff that is on the market. I like the campatibility of it with all the other types of antifreezes out there.
A few years ago I had a shop put in a radiator in my Dads old van that had Amsoil antifreeze that was the old formulation. I told the shop don't add any antifreeze to the vehicle if they spilled any. But they added some ethylene glycol, and a couple of months later mass corrosion in the radiator.
I also like the long life claim they make, although I think I'll change it a bit more often. The thing that is strange is they say that maximum cooling is obtained with 70% antifreeze on the bottle. I always read 70% gives the best freeze protection but not as good cooling protection as a 50% mix?
I drove my 98 Taurus from Everett, Wa (just north of Seattle) to San diego, CA and watched the temp reading on my scanner and it seemed more stable than the regular antifreeze and the old Amsoil antifreeze that I ran before.
I will be switching over more family vehicles in the future and hope this stuff is the BOMB!
I have had good luck with the old stuff. It looks like their antifreeze is up to snuff with other stuff that is on the market. I like the campatibility of it with all the other types of antifreezes out there.
A few years ago I had a shop put in a radiator in my Dads old van that had Amsoil antifreeze that was the old formulation. I told the shop don't add any antifreeze to the vehicle if they spilled any. But they added some ethylene glycol, and a couple of months later mass corrosion in the radiator.
I also like the long life claim they make, although I think I'll change it a bit more often. The thing that is strange is they say that maximum cooling is obtained with 70% antifreeze on the bottle. I always read 70% gives the best freeze protection but not as good cooling protection as a 50% mix?
I drove my 98 Taurus from Everett, Wa (just north of Seattle) to San diego, CA and watched the temp reading on my scanner and it seemed more stable than the regular antifreeze and the old Amsoil antifreeze that I ran before.
I will be switching over more family vehicles in the future and hope this stuff is the BOMB!
Ok here is the scoop on the new Amsoil antifreeze.
I e-mailed tech services asking if the statement was correct on the gallon jugs.
"It says the best cooling ratio is at 70% antifreeze to 30% water"
It's normally been that the best cooling ratio I have seen on any other coolants going way back is at a 50/50 mix. I have always known it to be a trade off. The best corrosion protection is at 70% antifreeze and best cooling ratio is 50/50. I want both at the same time!
So it now looks like we have the best of both worlds.
I e-mailed tech services asking if the statement was correct on the gallon jugs.
"It says the best cooling ratio is at 70% antifreeze to 30% water"
It's normally been that the best cooling ratio I have seen on any other coolants going way back is at a 50/50 mix. I have always known it to be a trade off. The best corrosion protection is at 70% antifreeze and best cooling ratio is 50/50. I want both at the same time!
So it now looks like we have the best of both worlds.
I'm not sure which species of whacky-weed that Amsoil tech support yahoo you spoke with smokes, but propylene glycol is known to NOT be as efficient a heat transfer agent as ethylene glycol (which, itself, is known to not be as efficient a heat transfer agent as pure water*). Personally, I'm not at all comfortable with the notion of running 70% antifreeze concentration in an aluminum engine cooling system and especially one based on propylene glycol in areas such as mine that are frequented by summer temperature extremes.
*Sadly, pure water promotes corrosion, waterpump seal wear, and is subject to accelerated evaporative loss... (Sure can't beat the price though!
)
[ January 17, 2005, 05:50 PM: Message edited by: Ray H ]
*Sadly, pure water promotes corrosion, waterpump seal wear, and is subject to accelerated evaporative loss... (Sure can't beat the price though!
[ January 17, 2005, 05:50 PM: Message edited by: Ray H ]
I can't give much explanation, but I don't think that using PG in warm climates is that big of a deal. Use a 60%H2O or 70%H2O and PG. I know that most of the blenders we do formulations for who are in mexico, south america, and australia, for the most part, use only PG. One reason is that the Freeze point is not a big worry for them... EG has a lower FP than PG.
Anyway, I agree with you that 70% concentrate does seem high, however I see nothing wrong with the use of PG. (is it possible that maybe they told him to use more concentrate because more concentrate = more $$$?
He did say he was high on something that day..............
kidding.
It does seem to buck convention, what I have been told. They did send it to me in a e-mail though.
It would not be the first time I got the "not most accurate info"
I would think that the info would be correct because it is on the jug itself. Major typo mistake otherwise.
I really like the PG antifreeze that is Amsoils old formula. So I'll give this stuf a shot. Like I said it held real steady on the trip down the coast.
I'll see how it holds up in the hotter weather in San Diego. Not really sure how hot it gets here, just moved in November.
The engine I,m using it in is all cast iron, so I think I'll leave it. My dads Voyager van does have aluminum heads cast iron block that I put it in. But he lives in Everett, just north of Seattle. He should be OK.
It does seem to buck convention, what I have been told. They did send it to me in a e-mail though.
It would not be the first time I got the "not most accurate info"
I would think that the info would be correct because it is on the jug itself. Major typo mistake otherwise.
I really like the PG antifreeze that is Amsoils old formula. So I'll give this stuf a shot. Like I said it held real steady on the trip down the coast.
I'll see how it holds up in the hotter weather in San Diego. Not really sure how hot it gets here, just moved in November.
The engine I,m using it in is all cast iron, so I think I'll leave it. My dads Voyager van does have aluminum heads cast iron block that I put it in. But he lives in Everett, just north of Seattle. He should be OK.
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