Tracer Products TP-3090-0601 Gas Engine Oil dye, 1 Pack

I had a oil leak on my Lexus ES300 and I used this dye to find the problem. it works very well but, I didn't use the date/mileage warring sticker to remind you of dye have been used and when I did my oil change, all the engine oil was antifreeze green. I thought I blew head gaskets and did my head gaskets because I didn't remember using the dye. Funny but time consuming work and expenses.

Perfect size portion bottles. Really bright when using a UV light and even bright without it. Easy to use, just pour it in and run the engine for a few minutes so it mixes. Good price.

Fantastic Product. Everyone should pour one of these tiny bottles in your coolant and engine oil. Now bright Neon Green leaks, easy to spot & Trace.

Product worked great. Unfortunately I've discovered I have to replace the front oil seal on my engine. I added a full bottle (1 oz) to a 3.4 Toyota Engine. Ran the motor for 5 minutes and used a blacklight and UV glasses to take a look. I could tell that the oil was leaking out around the front pulley, running down the front of the oil pan, and then dripping off the drain plug.

had on oil leak in 2007 honda accord 2.4 could not see it bought this and uv light separate did not buy the uv glasses, found leak in oil pan, that was the easy part sub frame needed to be dropped to replace it. great product and works as advertised.