Engine oil Castrol or FUCHS

Castrol high mileage 5w-30 every 3 to 5k

Any other oil I have tried made my lifter tick super loud in cold weather

I use Castrol Edge 0W-40 in my '08 328, N52. Based on used oil analysis from Blackstone Labs, I'm at a 6K mile change interval.

The OEM oil filter worked well to keep insolubles low, and after 8,570 miles on this fill of Castrol High Mileage, the 2.8 TBN shows the oil had active additive to spare.

Castrol Europeans 0W40 is my typical go-to but Mobil-1 is great, get whichever is cheaper.

Personally on my half million mile M54 E46 I use Castrol edge high mileage 5W-30 with a ok filter; mobile one or the stp extended life filter as those two typically come with the red o rings which tend to last much longer than the black ones.

BMW has been endorsing Castrol since the early 1990's and I have to say that I've never had anything but good results using Castrol. I think it is a great oil and seems to do really well in BMWs.

Hey! I had two Octavias with the 1.6 TDI: the mk2 (I sold it) and the mk3 (the current one). Personally, I prefer Castrol Edge 5W-30. On the mk2 I once used Ravenol and the engine was a bit noisier compared to when I used Castrol.

SOOOO I've always used full synthetic way before most vehicles started recommending it from the manufacturer. I've ran mobile 1, royal purple, and a few others. When we got our 2007 Mazda 3 all of the records/receipts showed conventional Castrol was used. I've stuck with it to see how it do... I've increased the weight "one step" because we live in a hotter than average climate but we just hit 290k miles with not major issues... my average MPG is 31.x and I typically do 10 over the speed limit (so it could definitely be improved).I change it myself every 5k miles. I think the frequency is more important than the quality with oil. I'd rather have super tech every 3k than mobile 1 every 10k. I think if you stick with any major brand, use a good filter, and change it regularly you'll be fine.

Regardless, I haven't heard of Aral, but I wouldn't knock it without proof that's worse than Castrol.

Castrol. I've just always used it. A bit of advice though, i'd recommend staying away from Pennzoil, I had to clean an engine out after using it. Nasty, waxy stuff.