Originally Posted by americana182
Not sure, just know that it is burning oil, can you give me the spread?
Well if the smoke is gray then its a blown headgasket which generally runs 400-600 to replace at a shop
If the smoke is blue then its bad piston rings which almost guarantee an engine rebuild which is in the thousands.
If there is no smoke there could be a serious problem as well.
The simple things could be a valve cover gasket or spark plug tube seals which cost 15-30 dollars in parts generally and can be done as a DIY but it would take a shop about an hour so figure a general $65/hour flat rate and there you have it.
Advice: look for a different car, you dont know what this could be and you might get away with a cheap fix or be screwed for some money.
04 Mazdaspeed Miata #2373/4000: IHI, BBS, Harddog, Flyin'Miata.