[MazIonOta owner]

Castrol Edge Extended performance claims 20k miles between oil changes, does anybody else think this is a bad idea? Toyota recommends 10k with full synthetic oil (the regular Castrol Edge also says 10k), but Mazda, who made our iA's recommends 7.5k.

Thoughts?

 

[Mazda iA fan]

I do 5 to 7,000 miles on full synthetic since new. More miles may be possible but it is a reasonable price for me.

 

[mjtinok]

Toyota 0-20w IS rated for 10,000 miles. I have mine changed at the dealership once a year as I only go 5000-6000 miles a year. The record is a BMW diesel that went over 15,000 miles before the computer said to change it. I believe in the 20,000 oil change using Castrol or Mobil 1(yearly is your call) along with a Royal Purple filter OR the Fram 20,000 mile synthetic oil filter as oil and filter technology has come that far as any other tech. NOTE- I grew up in the 3000 mile oil change world (you used 20W in the winter and 30W and it was a COLLOSAL PIA!!!!! So be thankful for the new tech.

 

[mimelio]

Mobil 1 Advanced Fuel Economy 0W20 6 month or 5,000 miles