Engine oil Castrol or IDEMITSU

I've been using Castrol GTX High Mileage for almost 10 years in my 2009. I've always done 10,000 mile changes and I've got 298,000 miles on it. Blackstone tests on my 10,000 mile oil say it should be good for another 2000 miles.

Always used Castrol in my cars when I\u2019ve had the choice and never had a problem.

On my previous car, a VW Golf 7 2.0 TDI I used to change the oil (Castrol 5W30 Long Life) every 12000km.

Had an 02 explorer with the 4.0 that had 286,000 and still running like a champ when I sold it. It was on its second transmission and everything in the vehicle was falling apart but that motor never once had an issue. Regular maintenance and oil changes every 10 to 15k using Castrol GTX fully synthetic

This is normal. Wait till it gets below 1k rpm. Modern engines do not need a lot of time to idle after cold start, the ECU handles it. Although, for a few kilometres, do not push very hard. The engine oil (0w-20 idemitsu) is thin, and needs time to lubricate well.

I put some Castrol 0w20, no 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

I did burn more Castrol than kroon. now i cannot get kroon and changed to Motul which seems to burn faster than kroon.

One time I had the oil bug bite (keera) and I decided to get the best oil. Castrol (I don't remember the number) but it was 340 AED for a gallon. I poured it into the engine and it felt good. That weekend took it for a desert drive and during one of the breaks, the entire oil just leaked out of the main seal. The oil was so good that the engine didn't have the tolerances to hold it back.