Join Date: Jan 2010
Location: Salt Lake City, UT
Re: Oil Brands/Oil Change Frequency
I changed to 0-20 synthetic (Amsoil initially, but Mobil1 shortly thereafter and since) the day after I bought my 2006 Mazda3 (used with 17k miles in 2007). I change just the filter, which is annoying as hell, why the 2.3L uses a cartridge instead of a spin on I'll never understand, every 3-4k miles, but only replace all the oil outright every 12 months, which rounds out to 12-18k miles depending on what my college schedule does. Even at the outside the oil has always come out looking quite clean.
I'm trading it in for a 2011 in a couple of weeks, and from what's been said here it looks like the switch to Mobil1 0-20 is a stock consideration now. Any reason I should change my current practice? The vast majority of my driving is on the highway.
It could be that the purpose of your life is only to serve as a warning to others