2008 Mazda CX-7 Sport 4dr SUV (2.3L 4cyl Turbo 6A)
I have been driving Hondas for 30 years.
I purchased the Mazda 2 years ago.
The turbo just went out and Mazda won't honior the warrantly because there is "sludge" in my engine.
The Mazda dealership told me to replace the entire engine at a cost of $9000.
I have 60,000 miles on it.
Regular maintenance and use synthetic oil but since I did not have my oil changes done at the dealership the dealership won't cover it either.
Also, I bought it used and did think to ask for copies of the oil changes from the previous owner and without those, I can't prove the oil was changed every 3,000 miles.