If you buy your cooling fan and relay from Champion Cooling Systems, you'll also get wiring instructions. However, if you buy from one of our dealers, you might not get our fans or relays - or instructions.
Although the temperature switch in our fan relay kits is an OE style, it isn't a temperature sender like you would use for a gauge. It's simply an on-off switch and should only be used for fan relay operation.
We get the question often, as well as what mixture to use. We don't recommend any particular brand over another, but we do have a type of coolant we discourage using.