I shared this thread with Errecom and they came back with these answers to questions:


The product is universal and could be used in all divisions Automotive (that is why we have the adapters for R134a and R1234yf), but also HVAC&R&R (with the adapters ¼ SEA + 5/16 SAE);

The product could be injected in full system when it is running or in empty (vacuum system) but than the system need to be switched on as the product need to be mixed with the refrigeration gas and compressor lubricants;

The product works with all refrigeration gases (including R12, R134a and R1234yf) and all compressor oils (PAG, POE, PAO, etc).

 

Thread revival alert!

So, after the crazy year end and now a crazy year start, I had an opportunity to log some AC temperatures in 100 degree heat going down the interstate, small country roads and idling.

I plan to install the AC booster (while fixing my dragging RF brake) next week and do some more testing of the AC under similar conditions.

Cliff notes version of my AC performance is 55-57 degrees rolling down the road. I had the freon checked many years ago and don't have gauges to check myself. I'm too lazy to get some at Harbor Freight.

I am sure the orifice tube is mostly clogged or at least the OEM version from the factory 20 years ago.

It is what it is and I don't feel like spending 100's of dollars and/or take the truck to a shop and leave it to get 10 degrees cooler. Since FordTruckNoob was nice enough to send me the booster almost a year ago, I felt it was only right to finish my end of the deal.

Update soon to follow.

 

On Saturday the 18th of July when the ambient temperature was 96-100 degrees and the humidity was about 45%. The AC could only muster 57 degrees at its coolest point. When I stopped at the campground and idled for a few minutes, the AC rose to about 70 degrees.

Today I installed the Cool-Shot Ultra that FordTruckNoob sent me last year and I received similar results as everyone else.

Today is 93 degrees with 44% humidity, so nearly the same as last Saturday. The AC managed to get down to 50-52 degrees which is a 5-7 degree drop. The best part though was that while the truck was idling with my family in it while I ran into the parts store for some brake fluid, the AC only rose to 58 degrees. So, the running max cool only came down 5-7 degrees, but the idling cooling temperature came down 12 degrees.

I know that 50-52 degrees is not a stellar reading, but I will take it. I had plans to get a manifold gauge set, but might delay that purchase now because I think I can deal with the heat as long as the AC is in the 50's while moving and idling.

Thanks Leonard, I do appreciate it.

 

It's rare that a product that makes such audacious claims actually works. Thank you all for being willing guinea pigs.

 

Sous I have the same temp readings as you and is borderline bearable at idle . Would like to try some of this stuff, where do you guys recommend buying this from?

 

I ended up buying it directly from Errecom out of Italy on an exworks basis. You can find it on Amazon on occasion. It may not come with the right adapter. I have a few of the correct adapters left so let me know and I can send you one.

EDIT: Found some on eBay. https://www.ebay.com/itm/254344233223

 

Great thanks FordTruckNoob

 

Any USA sellers? Looking at 20-30 days from some of those I found on ebay. Thanks.

 

Sous, apples and oranges but, I have a window air conditioner in my basement for my data center (yeah I said that right). Right now, it's 90F in the shade, the air conditioner is in direct sunlight right now, and it's output after running for hours is right now at 48F.

For the underhood temps of a vehicle, the ducting, etc, of an automotive system, low 50's is pretty darn good.

 

I agree with you sir! I was pretty darn happy to see the AC temperature didn't jump to the mid-high 70's when it sat idle (not high idle) for several minutes in mid 90's weather on a hot black top parking lot. The drop in running temperature is good at 5-7 degree drop, but the idle drop is what really made me happy.

I think this stuff works and am glad it does.

Thank you for chiming in sir.

 

Now I have to be devil's advocate and ask ... how much heat is the condenser soaking your radiator with?

Are underhood temps affected?

 

I don't know sir, but I would think that at speed the heat soak would be negligible. I can tell you that when towing 12,000 lbs in ambient heat like that, my fan does turn on after slowing down and making a turn. But, it only comes on for 5-10 seconds until I get going again at a grandpas pace before turning off. Before installing the SXE, I had a modified turbo and the fan would be on much more during high heat conditions like we are seeing now. But, I would be running the RPM up to 2800 in 4th gear instead of 2000 RPM in 5th gear.

But, the test I performed in regards to the Cool Shot Ultra absolutely made a difference. Nothing ground breaking of course, but it was just a few cc's of oil like substance I put into the low side of the AC system.

In my opinion, I don't think heat soak is a big issue for the 7.3 due to the massive amount of coolant (8 gallons) it has coursing through it. Obviously, when the fan kicks on in a 7.3L, the driver can hear it going. I always make a mental note if/when the fan turns on and make note of when it turns off. That is why I was able to recall the 5-10 second time frame a few sentences up.

Maybe for someone that has a somewhat clogged radiator or condenser the heat soak could be a problem, but for my truck I don't think it is.

 

https://www.ebay.com/itm/254344233223
I was able to get these guys down to $20.00 on ebay but still have to wait a while for it to arrive since its coming from Italy. Just figured I would share since its a little cheaper. Looking forward to giving it a try, thanks for the heads up on this product FordTruckNoob 👍

 

Sous, I just meant that the extra heat under the hood of a Superduty would affect my comparison to a window AC unit. In a good way. The fact that you're 4-6 degrees within the range of my wall unit, is incredible, especially at idle.

 

Understood... My ability to over complicate things is a curse and a blessing...

I agree, cold AC is a great thing to have on these 20 year old trucks.

Well done sir and thank you for sharing this with the community. I have forwarded your link to a friend that was looking for some of this working snake oil.