had a race setup in my dc2 type R, seemingly sat 90-95 ish at most times but upon a flogging rose to 115 ! this I was informed, is about as hot as you wanna see it ! any hotter, I was told to fit an oil cooler ! dont know the extent to which this is relevant in an xr6t but I would recon its similar ? and my sender was bolted into sump pan at the rear apparently (less air cooling ) but I never really looked at it !