Engine oil IDEMITSU or ELF

I use Idemitsu Wankel Racing Oil. 10w30, I think.

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.

I've been running that exact oil in my rx8 for about 1k km now and its still as smooth as ever

i am of the mindset of using oil from the region. my GTI is a german car and gets liquimoly, a german oil. my toyota/subaru is Japanese, Idemitsu is a japanese oil (and the oem supplier for Subaru). i have 5w30 in it now.

I've been running Idemitsu oil in the XT and the wife's Crosstrek for the last four and five years and have been happy with it.

I've been putting 10w-40 ELF 70 STI regular oil in my 1.6 petrol from '98 for 3 years now with no issues.

You’ll be fine, idemitsu is a bit of a rotary specialist when it comes to fluids

I think Idemitsu is the better option if you have access to it. Mostly because it was developed for the rotary engine.

Idemitsu to both, because it’s designed and tested on rotaries.

Now, I realized that the engine oil the mechanic put on when I got the camshaft replaced in november, is actually meant for cars. The oil is the ELF sporti TXI 10W40.