Review on 🚰 Lisle 24680 Spill-Free Funnel: Standard Adapters for Mess-Free Pouring by Eric Speers

My 350z has a closed cooling system unlike my old GM cars where simply opening the radiator cap bled air out of the cooling system. My car was overheating and I didn't know why until someone told me I had to buy this to completely bleed the air from the coolant system. Funnel to open the radiator cap when cold, and fill the funnel about 1/4 full so that when the system is burped, liquid enters the system and not more air. Allow the vehicle to reach normal operating temperature while idling and also set the heater to full power so that the fluid in the heater core can also flow. Basically look at your needle on the gauge and once it's about 1/4 up or if you have a gauge with numbers and it hits 160-180 you should be fine. At this point, the car's thermostat will open and begin supplying hotter coolant to the radiator, and cooler coolant should begin flowing into the engine block. Bubbles should come out of the funnel, this is the air that entered the system. Pour coolant into the funnel to keep it at the 1/4 mark to prevent air from getting back into the system. If you have a RPM sensor you can also step on the accelerator and hold the RPM at 3000 for 10 seconds and then release for 10 seconds, do this 3 times. Then let the car idle until there are no more bubbles and turn off the car. This should not take more than 30 minutes, after which turn off the car. Leave the funnel there because as the car cools down, the system will still draw fluid from the funnel as it cools. Check coolant expansion tank and fill to full hot line. Once the car has cooled, follow the instructions to remove the funnel and close the radiator. At this point, 95-100% of the air has been expelled from the system. Now check the radiator level every morning for the first few days thereafter and top up if it is low. You should also keep an eye on the expansion tank for the next week, as any minimal residual air will escape from the overflow tank and suck in air again when the tank is empty. and we don't want that. Once you see the levels in the overflow reservoir staying steady between full hot and full cold, you should be good to go. Good luck and always use caution when working with the cooling system to avoid burning yourself or others around your project.