Quoting batteredoldsupersport:
Having a lower change light simply for oil warming strikes me as a lot of work for not much benefit. A clever gadget, for sure, especially if you hooked it to a temp sensor so that it sorted it out for itself, but a gadget nonetheless. After all, a lower rev limit for cold oil isn't an absolute, it just means that you drive around like my Mum for the first few miles. The odd spell at 5000 rpm while overtaking is neither here nor there, even with cold oil, let's be honest.
Boss,
It's not a lot of work at all. Just fit the switch and plug the laptop in. On one map I have the Change Light set low but not the rev limiter so I can overtake/get out of trouble if I need to. Another map I have the Light and Limiter set a little below max to avoid the temptation to rag the engine all the time. Agreed it's not a massive benefit but the ECU is fitted anyway so why not use the features for the sake of a switch?
Rgds
Colin