recently my temp guage is fluctuating up and down when i dont have the heat on the temp needle goes up and when its on my needle goes more in the cold zone which is down also i feel a little slower when vtec cracks ive been told it flutters would the temp have to do with anything?or what else could it might be my friend siad it could be the tempature of the oil.. i did check my oil level and its where it should be on the dip stick what do you guys think it may be???