Engine oil Castrol or Shell

I put some Castrol 0w20, no issues.

All three I ran Rotella T6 5w-40. I ran 5K oil changes with OEM or WIX filters. All had Blackstone oil analysis done, and all passed every time with flying colors.

5k with Rotella T6.

20 years driving modified STIs with zero issues.

Castrol mangnetec gave me good performance but in city conditions it gave inconsistent fuel economies for me and under normal cruising speed 80-90 it performed really good. But for me it felt like reaching higher speeds above 100 felt slower compared to shell. Initial pick up of my car felt higher with this oil.

I have a 2012 civic with 220k miles still use Castrol 0w-20. I've been using it since 500 miles switched to the high mileage stuff around 100k

Castrol Edge is usually cheaper than Mobil 1 and will be as good.

Can use 5w30 or 5w40.

0w40 or 5w40 will give you slightly better engine protection if you drive at high rpms more often.

I wouldn't use anything cheaper or different than those two really. You don't need more expensive oils than those either.

Castrol edge is just fine, even the cheapest one is likely better than whatever was good 20 years ago.

295,000 miles using Castrol GTX high mileage and fram XG filter

Al producătorului, Mobil1 sau Ravenol în general. E ok și Castrol doar că în experiența mea se înnegrește mai repede și trebuie schimbat mai repede pentru o funcționare lină a motorului.

Today I changed my engine oil to castrol power1 Cruise 15w-50 with TVS engine oil additive. Post that my engine starts to vibrate at bit early rpm & getting hot more quickly & frequently.