vs
Engine oil IDEMITSU or FUCHS
Idemitsu is responsible for the oil that powered the Mazda 787b; they know the rotary like no other. I exclusively use their synthetic 20w50 and premix.
Pros: knows rotary like no other
Regarding brands, if you want to stick with factory oil without dealer price, Idemitsu is the brand to get. I emailed Mazda corporate and they said Idemitsu is the OEM for their oil.
Pros: OEM for Mazda oil
Vehicle:
Mazda 3
4.5 L is the Ideal for Mazda 6 2.5 non turbo, I'm from the same country as you. I'm using fuchs titan 5w30 for two years and I recommend you do the same, I noticed quieter engine.
Pros: quieter engine
Vehicle:
Mazda 6
Fuchs Titan GT1 5w30.
Vehicle:
BMW
I have a Sohn kit and run Idemitsu engine oil in the engine and Idemitsu premix in the Sohn. Runs lovely and smooth and the original cat is still doing the job.
Pros: runs lovely and smooth
Vehicle:
Mazda
We use Idemitsu for engine oil and transmission and red line for front and rear diff. Red line makes a good fluid for the transmission also.
Fuchs is excellent oil, run it in my nismo 370z cause it has specific esters that the cylinder liners need. Don't think it's necessary BMW engines but it is very good quality oil.
Pros: very good quality oil
Vehicle:
Nissan
I use Idemitsu Wankel Racing Oil. 10w30, I think.
Pros: Wankel Racing Oil
Vehicle:
Mazda
Idemitsu all day. It’s synthetic but what needs to be emphasized is the ingredient blend is purpose designed for a rotary to make the right lube + burn.
Pros: purpose designed for rotary
Oil that I used is Fuchs
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