GTXT23
LightFoot
-- I appreciate your conclusions and believe what you say is true - Im riding out my first oil change in which I used 0w-20 Mazda OE w/moly -- I am going to switch to 5W-30 viscosity on the next oil change - quasi post winter- I just wanted to know if you liked the Castrol Edge over the Mazda OE 5w-30- The dealer wants $16/ a quart for 5w-30 --so If Im doing it --its going to be Castrol or Mobil -1 - Castrol is about $30 for 5 qts same with Mobil-1The reason why I plan to switch from my current Mazda 0W-20 moly oil to Castrol Edge 5W-30 oil is twofold. Firstly I prefer Mazda worldwide approved 5W-30 viscosity than 0W-20 for less valve noise being reported by many 2.5L NA owners here. Secondly the price has gone up significantly on Mazda parts nowadays, and its 0W-20 moly oil now is $11.15 per quart MSRP comparing to $7 per quart in old days when I bought a couple of cases. I simply feel it’s now over-priced even with high moly content in oil. Remember Mazda’s 5W-30 factory fill in 2.5T has minimum moly content, as Mazda doesn’t offer moly oil on 5W-30 viscosity.
thanks again