AMSOIL protects your vehicle with a warranty against any damage to your cooling system and states that it is compatible with DEX-COOL. I posted this earlier.I'm sceptical this or similar products do anything. Laws of physics, friction and heat generated by the combustion process is not enough to warm the engine adding something to the cooling system is not going to make a significant improvement. Besides I would never add anything to dexcool.
I monitor the engine temperatures daily on my car, on these very cold days of -20F the motor is showing -15F when I start it. On a 15F day(engine around 19F starting) it takes 4-5minutes to be at 100 degrees, when -20F the engine is hitting 90F degrees after 8-9 minutes of idling. Sure driving generates heat faster but I'm trying to point out how outside temperature effects warm up time in a more controlled environment(both examples idling) for comparison. If people are seeing any marked improvement with this product I suspect there is some other variable at play.
Have found some cases of this product becoming corrosive in the cooling system, which amsoil plays off as people using chlorinated water.
http://www.cherokeesrt8.com/forums/showthread.php?t=63752
Corrosion after runing dionized water + amsoil coolant boost(similar to water wetter) [Archive] - GTA Motorcycle.com
http://www.amsoil.com/techservicesbulletin/other/tsb ps-2012-01-02_coolantboost.pdf
Most bottled water goes through a reverse osmosis filtration that removes contaminants and contains a low chloride concentration. One of the guys in the SRT8 forum explained the situation pretty clearly as far as what went wrong and why.Those 2 posts are user error problems. I looked at these very posts before using the product.
The first, the guy used Aquafina in his radiator....
The second: If you put straight water in your system for any decent amount of time, without inhibitors, it will corrode.
No idea why AMS is recommending bottled water, this seems really bad to me.
Yeah, I read and absorbed that and as the guy states, you need to be reading the fine print on the bottled water to get the PPM count. Bottled water is a pretty general term. I guess I would have liked the AMS documents to be more specific. Aquafina is "bottled water" but I would never use it at all. Distilled and antifreeze is the proper mixture. Now, if the SRT guy would have used a conditioner with the Aquafina it would have been ok. I feel bad for the guy but it was his own fault really.Most bottled water goes through a reverse osmosis filtration that removes contaminants and contains a low chloride concentration. One of the guys in the SRT8 forum explained the situation pretty clearly as far as what went wrong and why.
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Took me about a week to a week and a half and one entire tank of gas to really start working. I didn't really pay attention to it till then expecting it to take a while. I put in half the bottle since I didn't care to measure it all. You basically end up with a mix of coolant and coolant boost in the surge tank which will take a while to work its way through.I've put about 60 miles and had several hot/cold cycles now. How long should this take to work in? Hate to say it but this has had 0 effect on how long it takes for the car to warm up. Just drove home (3 miles through [email protected] 25mph - 3rd gear to keep rpm up to 2k) with fan set to off, temp needle never moved from Cold. Had lunch with the wife for 30 min then drove back to work, needle managed to get just below 1/4 temp. Wondering if my thermostat is working at all...
If you look at the surge tank you'll see there's a small circular viewing window where the vapor line is plumbed into the top of the surge tank. With the engine running you can see coolant circulating through.I've put about 60 miles and had several hot/cold cycles now. How long should this take to work in?
Yep. Heat doesn't come from nowhere, so if there's added cabin heat sooner in the warm-up process, that extra heat can only come from one place; the combustion gasses. This can happen in two ways, the first is drawing extra heat from the cylinder head, and two is the heater core drawing more heat from the coolant and cooling it further. This would send colder coolant back to the engine, absorbing more heat than hotter coolant would. The second would not cause the temperature gauge to climb faster, so I suspect it's a combination of the two. Based on the product claim of making heat transfer between metal and coolant more efficient, that would make sense.If people are seeing any marked improvement with this product I suspect there is some other variable at play.
Precisely. This is exactly what is happening. It is good for people to understand the concepts behind how this is working. This product exists for people who don't mind trading a bit of efficiency during cold starts for faster heat in very cold conditions. Based on the threads and complaints that have been cropping up, I'd say there's a large number of people who fall under this category, like the fellow who had to get a rental car to get around because his Cruze didn't provide enough heat. If you are content with the warm-up time of your Cruze, this product is unnecessary.Yep. Heat doesn't come from nowhere, so if there's added cabin heat sooner in the warm-up process, that extra heat can only come from one place; the combustion gasses. This can happen in two ways, the first is drawing extra heat from the cylinder head, and two is the heater core drawing more heat from the coolant and cooling it further. This would send colder coolant back to the engine, absorbing more heat than hotter coolant would. The second would not cause the temperature gauge to climb faster, so I suspect it's a combination of the two. Based on the product claim of making heat transfer between metal and coolant more efficient, that would make sense.
Cooling the combustion process will reduce the engine's efficiency. Will this efficiency hit be enough for people to notice? I don't know. It will be a trade-off, as cooler combustion gasses mean cooler exhaust gasses, and that means longer warm-up times for the catalytic converters which will increase cold start emissions.
Everyone reading this needs to keep it in perspective... I'm not saying this will have a large noticeable detrimental impact on your car's fuel efficiency or cause some other catastrophic side effect - I'm sure it won't. I'm just trying to point out the physics behind what's going on here. Unless the car starts magically burning more fuel than before, there isn't any more heat energy to heat your car with than there was before. If this product increases the amount of heat you get in the car, just know the heat had to come from somewhere.
I've only seen the dripping occur during warm-up times while the fluid expands. At full operating temperatures, I've watched it and not seen any fluid moving through.If you look at the surge tank you'll see there's a small circular viewing window where the vapor line is plumbed into the top of the surge tank. With the engine running you can see coolant circulating through.
I would think that the coolant in the surge tank would be cycled completely every couple of hours or so. After 3-4 hours of run time I'd count on it being fully mixed into the coolant.
I only see coolant dripping through there during the warm-up cycle. Unless those hoses are run through the water pump inIf you look at the surge tank you'll see there's a small circular viewing window where the vapor line is plumbed into the top of the surge tank. With the engine running you can see coolant circulating through.
I would think that the coolant in the surge tank would be cycled completely every couple of hours or so. After 3-4 hours of run time I'd count on it being fully mixed into the coolant.
Once the coolant is at full operating temperature, which may eventually happen during the ccccccooooollllllddddd winter we've been having, and after being on the highway a bit, when you get to your destination leave the engine running and open the hood.I only see coolant dripping through there during the warm-up cycle. Unless those hoses are run through the water pump in
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I'll check it out. If this is true, the additive should be well distributed in the system within two hot/cold cycles.Once the coolant is at full operating temperature, which may eventually happen during the ccccccooooollllllddddd winter we've been having, and after being on the highway a bit, when you get to your destination leave the engine running and open the hood.
Observe the little hose at the top of the tank and you will see full flow taking place.
The small hose, tank, and larger hose act as the bypass system and the flow is to guide any steam bubbles that have developed into the surge.
Standard cooling system design.
Rob
Well that's good to know. I don't have to tell people to wait several hot/cold cycles then!Oh, for sure, it'll be fully distributed in probably 5 minutes or so once the system is flowing normally.
Rob
Did some more research on this since it is an area of concern, and I figured out the issue.I'm sceptical this or similar products do anything. Laws of physics, friction and heat generated by the combustion process is not enough to warm the engine adding something to the cooling system is not going to make a significant improvement. Besides I would never add anything to dexcool.
I monitor the engine temperatures daily on my car, on these very cold days of -20F the motor is showing -15F when I start it. On a 15F day(engine around 19F starting) it takes 4-5minutes to be at 100 degrees, when -20F the engine is hitting 90F degrees after 8-9 minutes of idling. Sure driving generates heat faster but I'm trying to point out how outside temperature effects warm up time in a more controlled environment(both examples idling) for comparison. If people are seeing any marked improvement with this product I suspect there is some other variable at play.
Have found some cases of this product becoming corrosive in the cooling system, which amsoil plays off as people using chlorinated water.
http://www.cherokeesrt8.com/forums/showthread.php?t=63752
Corrosion after runing dionized water + amsoil coolant boost(similar to water wetter) [Archive] - GTA Motorcycle.com
http://www.amsoil.com/techservicesbulletin/other/tsb ps-2012-01-02_coolantboost.pdf