Noggin: forgot to mention that I have only replaced the battery once. I replaced it a year ago. I think it had somewhere around 100k-108k miles at the time. I also have an aftermarket stereo system. It's not a gazillion watt set up like some of the ghetto blaster rickety cars on the street are, but it's not a joe-blow quality system either.

 

My first gear has been tricky when trying to put it in gear before rolling to a complete stop. Other than that I've never had any shifting problems beyond me being stupid lol

 

You can do like me and learn how to drive stick in a Class B commercial truck for two weeks out of town! Haha. Day 1 was a total disaster but after those two weeks I was a pro! Haha. Good thing it was a rental truck on the company's dime

 

I make way too many short trips and currently have another battery situation. I have 2 subs with 600 watt alpine amp, not overly huge amp but the 15" woofers are huge and because of them i had to insulate the rear hatch and roof. The cold weather we have sometimes gives me starting issues. I recently found out the Optima battery is only rated to -30 degrees---unacceptable for my area.
I use my subs to DJ with as well (hence wheels).
With your mileage you are going to have a hell of a time changing those plugs. Good Luck.

 

How will mileage make changing my spark plugs any tougher?

I'm not asking to be a smart, uhmm... "smartbooty" I'm actually truly curious as to why it would be a hell of a time lol

 

One if you never removed them from the cylinder head as part of regular maintenance then they have a tendency to seize in the heads due to carbon build up and corrosion in the threads themselves, two when you do get the plugs removed they can drop said carbon into the cylinders potentially scoring your cylinder walls, sticking a valve open slightly or jam a compression ring and finally possibly damage the threads in the cylinder head upon removal IF the plug even comes out.

 

Hope my new 121k mile mazda3 s stays reliable. It runs great.

 

got it