Engine oil Castrol or MOTUL

I use Motul 5100 been running for 8k miles with no issues and smooth shifting.

Last change oil ko 5700km di naman sumabog swabe parin manakbo

Oil used was Castrol's Power 1 5w-40

I've been using motul 300v for the last 5k kms, inclined to use the same in the next oil change or will switch to motul 7100.

I've been using this oil on my '17 BMW S1000R (5W40 weight) right after I got the first oil change from the dealership at 1K KM. Bike now has 25K KM and still running like new. Nothing wrong about seals, runs great and shifts have always been buttery smooth. I don't baby the bike, and change the oil once a year since I only do about 3K KM per year. When flushing, it's still red, a tiny bit darker than when I put it in. To me, this an excellent oil and it is much, much cheaper than the OEM BMW one, and it is JASO MA2 specs.

i have a bajaj 200NS and was given same reason in 2015. i didnt pursued furthur and got Motul as it is much better engine oil than crap they use. 33k km later, no issue and i get it serviced outside.

Anyhow, BMWs are arctic tested and the mega aluminum blocks can contract to -50C and can still safely start with 0W40. So the key is 7000-10000 kms but mandatory 0w4- or a 5w30 Liqui Molly or Fuchs or motul BEFORE WINTER.

I’ve moved to Castrol edge for my 9th gen.

Castrol edge and OEM filter for turbo.

Castrol euro 540. Tried liquid moly and a few others but my car burns them for some reason.

I used the Motul 10w50 fully synthetic. After running it for a few months I happened to check oil level and I was shocked to find out that 500ml had disappeared. This never happened on the stock Royal Enfield oil, nor with the Motul 5100, so I was not used to keep checking oil level religiously. But now I do.

Then I checked YouTube reviews to see if others report oil evaporation or burning off. And yes lot of youtubers report it, but still recommended it!

How can you recommend an engine oil that evaporates or burns off, even if it gives slightly better performance? It's ridiculous.