Lisle 75630 Test Fluid

Works great!

This kit is super easy to use and I prefer this style as I already have a hand vacuum. I use the same one as for brake bleeding. This as opposed to the other kits that have a built in bulb but that's a spot where it can break and render the kit useless.Its super easy instructions to follow and can give you a look to see if exhaust gases are present or not in the coolant knowimg if there is head gasket integrity issues.

Delivery time okay. Did it's job. I was looking at the Block Tester BT-500 which provided the tester and fluid. But for the same price, I bought this fluid and the OEMTOOLS 27145 Combustion Leak Detector, which comes with a case for the tester for the same price. I confirmed I had a head gasket leak (light green rather than color changing all the way to yellow). After research on Youtube, I went with K-Seal Pour and Go. Took about 3x cycles of running the car with radiator at operating temperature, and then poof, my Check Engine light went out. From reviews, it seems you will get at least 10k-20k miles out of it, some claim never a problem again. If the problem does reappear, I will probably then try the K-Seal Ultimate gasket seal.

The product is for my husband to do a combustion leak test on my land rover range rover. The product once obtained was just fine, however your cutomer service dept. took it upon themselves to order the wrong one from my choices to have it delivered in a timely manner. That would mean it would be ordered from an outside source and I would pay shipping. I also had a choice to order from the amazon product and then there were two in my cart and I could not get the second one out. I have ordered from Amazon for many years and am very familiar with how to do orders, whether it be one click or regular, and even how to get free shipping. Imagine that. I was treated like a loser, like I had no intelligence on how to order products and tried to explain this but encountered difficulty with agent. The agent took one off and then proceded to charge me shipping although it would mean it would delay the delivery time of my product, if I ordered the amazon product. Like 3-5 weeks; I needed it sooner: well, I called and complained as the agent had promised he would make the change to free shipping as the item qualified: after an arguement, I was able to get the free shipping since they messed up on my order. It was not pleasant and I must say this is the first episode of this having happened; it was purely the agent treating me badly,trying to instruct me on how to delete the one click order as it apparently looked as if I had chosen that method. I think you could have avoided this all together if your agents weren't outsourced to a foreign country, where you get what you pay for. A country where women are second class citizens and that was the tone of this transaction. I did get the free ship, but I should not have to write and let you know that this particular employee, the second one, not the first, was rude and thought I needed to learn how to shop properly online. LOL on that. I shop online all the time....Imagine that.

Over the years of using a block tester, I never thought there could be a difference in quality of the fluid being used.Make no mistake this fluid is the fast responding to combusting gasses. When compared to the competition out there this fluid out performs in every aspect.Good quality, easy to use, easy to store and it doesn’t leak.

Saved from pulling heads off my truck.

Trying to determine if you have faulty head gaskets is never fun. Mainly because if you are doing so, you know you already have a problem, and are more or less determining how much this is going to cost you. I figured for the price, I would try out this leak detector. It works by pouring a quantity of the fluid into the tube, and jamming it in the top of you coolant tank or radiator. You then hook the hose up to a vacuum source and then wait to see if the fluid changes colour. Well, the problem is you are supposed to drain out a bit of coolant from the system before doing so. I did not do this. Mainly because I felt draining coolant out of an already problematic system that was over heating was unwise. So, I tried it with a system full of coolant. Unfortunately, this only resulted in sucking coolant into the tube and invalidating the test. So, if you want to use this to test your system, you will need to drain some coolant out prior to doing so. Just for fun, I wanted to see the fluid actually change colour so I poured a small amount in a cup and placed it under the exhaust. Sure enough, it changes colour as expected. So, in theory if you drop your coolant level and do the test properly, it should be a decent indicator if you have exhaust gasses in your cooling system.

Not sure why but typically this stuff turns green sitting on the shelf. So far this batch is holding up.