I'm planning on doing an oil change in a week or so. I want to wait a week so I can see how much oil the car uses in that amount of time. I was looking at the high mileage oils at Walmart. I noticed both Valvoline and Castrol have a 5w30 SM rated high mileage oil. Pennzoil and the Tech2000 high mileage oil is rated SL. Does that make any difference? Pennzoil, Valvoline and Castrol's HM oil is right about 4 bucks a quart, the Tech2000 stuff is $3.26. Is a high mileage oil the right choice for my Accord with 200000 miles? Synthetic would be my first choice, but I'd rather not spend over 30 bucks just on one jug of oil, unless we're talking about the Tech2000 synthetic or the XD3 0W40 both of which are just under 22 bucks a jug. I haven't had the car long enough to find out how much oil it leaks or burns, so I wouldn't run an expensive oil if I would be going through a quart a week, for example. I was thinking about the high mileage oils because they're supposedly better than conventional dino oils, and the price is reasonable. This coming OCI will take me right into the heart of winter, and temps sometimes go down to -25 or even lower so a 5w30 would be my top choice. I'm not really brand loyal so if one brand is better than the other I'll go with the better one. One other oil that interests me is the Quaker State winter synthetic blend oil at Canadian Tire. IIRC, I read something on here that said that the viscosity of the 5w30 winter blend oil comes close to a 0W oil. I like the sound of that. Speaking of Canadian Tire, they sell Quaker State's high mileage oil, plus they have their own brand of high mileage oil. In the end, I guess what I'm really looking for is a sturdy oil, preferrably a conventional oil for cost reasons, will give me easy starts in the dead of winter, is decently fuel efficient and has a robust add pack that will best help protect my engine through all conditions, including when I like to drive hard. I suppose that's a tall order for a conventional oil but there has to be one out there that can do it. What do you think?