Engine oil Castrol or RED LINE

Castrol 5w30/ 0w30 German Castrol never leaked oil.

Tried both but my car seems to like castrol euro the most. Don’t have to add oil between changes

I stand by Redline 5w20. Not that I have bad “hemi tick” on my 5.7 but I swear the valvetrain is the quietest when I use that oil.

i recommend u buy castrol fully synthetic gtx. Normal price 160-170 but during offer can get as low as 110-130 with free microfiber towel from castrol. Make sure it is shopee mall castrol. I have already bought 3-4 bottles and used it with no issue.

That's a good oil. I used it before I switched to 10w-50 Castrol.

I personally use Red-Line products, and it's the absolute BEST products out there. Their 2 Stroke racing no smoke oil is OUTSTANDING and 2nd to none.

A3/B4 is a rating for just protecting the engine.

Castrol edge 5w-30 LL is oil with just C3. So it's mostly for protecting DPF. If you have a diesel engine with DPF then this is a good choice. If not something else would be better.

I switched to synthetic after doing a piston soak. Sticking with synthetic here on out. I initially ran conventional Castrol 5/30 then blend as conventional was not available through Amazon and then synthetic to try to stave off carbon build up on rings after a successful piston soak.

Castrol makes a Edge Euro 5w-30 and 5w-40 that is LL-01 and ACEA A3/B4, it's not going to meet the later LL requirements because it's higher viscosity and not as fuel conserving, also not low SAPS so potentially it could contribute to more intake valve buildup

I hated the castrol, I could tell the engine was louder with it compared to Pennzoil.