Not trying to be a party pooper here, but oil that that has been reheated many times times changes chemically and can become EXTREMELY unhealthy.
We all know that saturated fat is (generally) unhealthy; trans-fats (i.e. hydrogenated vegtable oils), VERY unhealthy; poly-unsaturated oils (eg sunflower), are to some extent "a-healthy" (neither good nor bad); and mono-unsaturated oils (eg olive) relatively healthy.
However, the normally 'neutral' polyunsaturates such as sunflower oil become very bad for you after only being heated to smoking-point ONCE, let alone on countless occasions!
The 'healthy-ness' ranking of the various oils and fats changes markedly when considering whether or not they have been heated!
I have read that olive oil does not become particularly unhealthy after heating, so I may be tempted to try Jerry's suggestion of using it in curry; I've only been put-off in the past by reports that it does not taste good in curry - although I use it all the time in 'Med' type food such as spag bol etc. Jerry's report that it is OK gives a new light on this.
At present I use groundnut oil for curry: it's 'cold healthyness' ranking puts it slightly below olive, but healthier than most; and according to the scientific literature, heating does not have quite the negative impact on it that it does on sunflower oil, for example.
Now I enjoy deep fried BIR stuff as much as everyone else on here, and I'm sure many are aware of what I've said above; but it is worthwhile knowing about this.....