In the debate between which one should be performed,
Mazda 3 2010 2.0 automatic - Owners manual doesn’t recommend a service interval on the transfluid
Mileage is 117k driven it since new, Its about 50% Highway/15% Rural Country roads/ 35% Suburban/City area Find it to be not exactly city due to half the time is spent at constant avg. 50 MPH with occasional stop light and other half is avg. 30 MPH stop sign heavy area.
The transfluid was flushed at 75K, Fluid is brown so I know its about time to have it serviced. Shifting is normal, The only time its shifted rather hard is from 1st to 2nd last winter in subzero temps. My question is to get a flush or just exchange it. I know flushing forces more of the old fluid out but can damage the trans(or so they say), and an exchange more old fluid remains. Doing it myself is not an option unfortunately.
And just a curious question to smell I could best describe as fishy/metallic that comes off of the front/right of the car right after its been turned off for a couple minutes. The smell seems to originate somewhere by the right side of the radiator smelling it through the grill area. Coolant is changed regularly and hoses are fine, note that my sense to smell is rather strong (Can smell another cars driver smoking a cigarette sitting across stop sign). Nothing seems out of the ordinary besides the smell, cars driven many trips and miles since I recognized it. Just was wondering if anyone had any insight on it. The only thing I seem to dislike about the car is a lack of gauges, I don’t like having to rely on the idiot light to tell me I’m running hot if something were to ever occur.