oil changes

Hello, I am sure there have been many discussions within threads but could not find a dedicated thread for Engine Oil change questions. If we could answer some typical questions owners have about this, it will be really helpful to everyone. Engine Type - Non-Turbo (US)...

Don't laugh, but I'm considering a 2014 Touring AWD (2.5L) with a long gap in maintenance records. The car was being serviced regularly at a Mazda dealership for about 40k miles, but then two years and another 30k miles go by without any record of maintenance. The dealer isn't offering to...

Stupid but maybe reasonable question, I saw on some random thread on the internet that when doing your oil change it said something about the air filter having air in it so you have to put oil in the filter or something. It said on initial start the engine will push air out possibly causing...

I have a 2010 Mazda3, automatic transmission, with 17k miles on it. Couple weeks ago I had the oil changed and tires rotated, and the tech said that the transmission fluid was dark brown and needs replaced. I have also noticed that the car seems more sluggish and is taking longer to switch...

Alright. In my 03 Mazda Protege5, synthetic has always been used up until the last oil change, where conventional oil was used(due to lack of funds for more expensive oil). I'm about to hit the 3000mile mark(since last change) with conventional(I know it's bad to go over with conventional). I...