Engine oil OEM Mazda or ROWE

I use Mazdas 5w-30 Ultra DPF. Mazda once said that this was the oil that they're using, so I guess what's used by mazda can't be too bad for the rex

Rowe 5W40, every 10K or 1 year

I found out that most of it came from the valve lifters. So I began using Rowe 10W40 engine oil. That helped a lot.

The road spec oils are excellent for daily driving and trackdays. Smoother engine, better engine efficiency, no oil consumption.

ITS A LOT THICK! than other brands of the same weight.. but when you abuse the vehicle it gets smooth like butter. I like them if I plan to aggressively dune bash.

I use Rowe as well and it's fantastic. No complains so far

I use rowe on all my cars, amazing oil but it’s more expensive

I've used Rowe, no complaints

Could be weather related. I'm in Canada and we have weather from -35C to +35C, so Mazda recommends oil changes every 8000km instead of 12,000km.

I used both rowe 5w30 507.00 and the OEM VW HIGH PERFORMENCE 0w30 (yes 0w30) 507.00

I didnt notice any difference between the two . Wear on my oil analysis was about the same with both oils.