Engine oil LIQUI MOLY or PENNZOIL
From what I've learned the best oil for the Turbo of any model with direct injection which Mazda uses is Pennzoil Ultra Platinum.
Use Penzoil Ultra Plat. Can probably stretch it to 5k miles with no issues.
The recommended Castrol isn't bad, but I've had better success with Mobil1 and Liquid Moly.
Try using liqui moli engine oil, change the air filter too.
After completing the 1000 km run in and going through the first service where I got Cepsa xtar 10w40 oil, the gearbox remained hard, compared to my previous F650 bmw.
Did some digging regarding engine oil and how I could improve my gear shifting experience, engine smoothness and durability and the choice was either Motul 7100 or LiquiMoly Street Race 10w40. Decided on Liqui Molly and definitely I am noticing much smoother gear shifts and maybe even less vibration. I am surprised. The change is definitely noticeable.
I switched to 5w30 Pennzoil Ultra Platinum a long time ago on my 2.0T. 140k miles and running strong. FK8 CTR Turbo added around 133k, too. FBO PRL mods!
5w40 liquidmoly
Imo Mobil 1 is mid grade at best. Liqui-moly is the only thing I’ve used for the last 5 years, I too started with Mobil 1, then switched to liquimoly (same weight) and the engine was immediately quieter, smoother, and ran cooler.
Got an oil change @ 94.1k using liqui moly 5w40. Low oil Light popped up at 96.4k. (Added 1 quart). Now I’m at 96.6k. Checked again and the bar is just one level under the “max” Why am I burning oil so quick?
It’s not any better than Walmart Castrol, just double if not triple the price. I’m 160k tuned!!!
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