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Well Scooby, you kinda got issues here. First up, the tires. The CX-7 with the 2.3 Turbo engine came standard with no options, with 235/60/18 tires and wheels. You apparently don't have those but you have the standard tire package that came with the 2.5 engine which is non-turbo. ONLY the S Touring model has the 2.3 turbo engine according to Mazda for YM 2011. So do you have it or not?
Oil changes. IF you have the 2.3 turbo engine, that engine uses any 5w-30 oil as speced by Mazda. The 2.5 is speced for the 0w-20 oil. Neither of which MUST be a synthetic oil but all you're going to find in a 0w-20 is synthetic. The owners manual says you can use 5w-20 if the 0w-20 is not available. The 0w-20 is for economy and extreme cold startups.
You can go with the 225/65/17 tires. You can even just get two of them too since you are not AWD. Vmax nailed it, it is such a small size difference that it won't hurt anything at all. You'd be fine if you had an AWD vehicle too, for that matter, since the differential is so small.
Well Scooby, you kinda got issues here. First up, the tires. The CX-7 with the 2.3 Turbo engine came standard with no options, with 235/60/18 tires and wheels. You apparently don't have those but you have the standard tire package that came with the 2.5 engine which is non-turbo. ONLY the S Touring model has the 2.3 turbo engine according to Mazda for YM 2011. So do you have it or not?
Oil changes. IF you have the 2.3 turbo engine, that engine uses any 5w-30 oil as speced by Mazda. The 2.5 is speced for the 0w-20 oil. Neither of which MUST be a synthetic oil but all you're going to find in a 0w-20 is synthetic. The owners manual says you can use 5w-20 if the 0w-20 is not available. The 0w-20 is for economy and extreme cold startups.
Good catch. OP, you really need to find out what you have under the hood. And look at your tires. The size is on the side of the tire. Let us know what it says. Any mechanic who calls a turbo a "fancy turbo" and synthetic "fake oil" wouldn't be my mechanic.
You can change to a larger size without any problem and you should change all 4 tires to be the same size. The only difference from a tire change will be your speedometer reading will change slightly.
A new key should run you in the neighborhood of $50.00. Some ACE hardware stores do them now.
Well Scooby, you kinda got issues here. First up, the tires. The CX-7 with the 2.3 Turbo engine came standard with no options, with 235/60/18 tires and wheels. You apparently don't have those but you have the standard tire package that came with the 2.5 engine which is non-turbo. ONLY the S Touring model has the 2.3 turbo engine according to Mazda for YM 2011. So do you have it or not?
Oil changes. IF you have the 2.3 turbo engine, that engine uses any 5w-30 oil as speced by Mazda. The 2.5 is speced for the 0w-20 oil. Neither of which MUST be a synthetic oil but all you're going to find in a 0w-20 is synthetic. The owners manual says you can use 5w-20 if the 0w-20 is not available. The 0w-20 is for economy and extreme cold startups.
I actually do have a user's manual, Trapper. The snark isn't necessary. It's a generic user's manual. It says I have a 2011 Mazda CX-7. It doesn't say which model my car is. Then it has a page 4-14 which describes the turbocharger and says it's on SOME models with an asterisk, but doesn't specify if my car has it. Then on page 8-20 it has both types of oil listed. The mechanic said I should use the synthetic because I have a turbo engine, so that's what I used at the oil change. I looked on my engine and it doesn't state 2.3 or 2.5 either, nor does it state it anywhere on the outside of the car.
@trlhiker, the 215/70/R17 is the tire size on the car now. I read the number directly off the tires and got the quotes for $190+/tire based on that size. And the fancy turbocharged engine and fake oil were my words, not the mechanic's. It was just a joke.
3. Using different size tires that what is recommended for this vehicle "can" affect the vehicle (PCM).
4. Almost $200.00, join the crowd !!
5. Research before you buy, something that didn't do !!
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