Exactly. Hence my choice. I was simply giving the requirement per Mazda. B3 is not what the engine was made to use, so the thicker oil is not necessary.I realize that the 2.5T is under the theoretical BMEP threshold where LSPI becomes an issue, but all the same, I'd prefer to stick with SN+.
Not just SN PLUS, I'd stick with full synthetic oil, as there's such oil available I don't think I'd use it on a 2.5T:I realize that the 2.5T is under the theoretical BMEP threshold where LSPI becomes an issue, but all the same, I'd prefer to stick with SN+.
That is wayyy thicker than intended, and not at a what I'd run in any turbo car. Why!? Is this a joke post?20W-50 Castrol GTX since day1. Under 20 bucks and the car's good for another 5k or 1 year, usually the latter, lol.
Keep in mind that what was best several decades ago may well not be best, now, especially in a field like chemical engineering/tribology.*pffft*
I replied to a thread from the top of the page "latest posts" section (like I've been doing since before the Mazda3 was out, much less the CX family) asking what oil TURBO drivers use. Castrol GTX is what Mazda recommends for its most famous turbocharged engine; the one that powered the car that won the 24hours of LeMans.
No need to get your panties in a bunch.