Engine oil LIQUI MOLY or Castrol

I run liqui moly 4100. I run 5w40 because I want something a bit thicker than what the manual calls for.

Liqui Moly Toptec 4100 5W-40 works if you feel like you need something thicker, but these diesels don't run crazy hot like gas + turbo engines.

I’ve been using castrol edge euro 0w-40 for years and loved it. Seems to be discontinued, can’t find it anymore. That sucks, moving to mobil 1 euro 0w-40.

I run Castrol Power 1 in my KTM 350 4T. I'm just past 800 hrs with \~25hr oil changes. It meets the JASO specs my bike requires. I have not changed a clutch ever since I bought it at 280 hrs. I had the motor apart at 500hrs and the Nicasil bore coating was \*perfect\*. That was the last time I swapped out the piston.

Liqui moly (2017 glc300 4matic)

5W40 Castrol

I use Castrol Edge. It's cheap and good. I drive a lot and I change oil every 3k miles so 5qt for $25 just fits my life better.

I use top tec 4200 5w30 but I change it every years and I’m not driving much.

Liqui Moly is just mediocre MADE IN GERMANY oil. Castrol Edge Titanium 0w40 is a good oil, as is Mobil 1 Euro FS 0w40 IMO Redline 0w40 or Amsoil Signature Series 0w40 are better oils.

I used castrol edge on my last change but I don't like the way the oil looks after a few months of driving. Of course it was extreme temperatures down here in South Texas. Wonder if the extreme heat caused my oil to look kinda jello looking haha.