Engine oil Castrol or PENNZOIL

I use Pennzoil ultra platinum and my car runs great I change it every 5K. I use mazda oem oil filters since they don’t have the anti drain back valve.

Pennzoil high mileage synthetic. I've burnt/leaked far less fuel since I started using it.

I use Pennzoil Platinum after FordBossMe turned me onto it and did some (quite detailed) review videos covering it versus the other ones such as Mobil1 and Valvoline

Pretty much as soon as I switched to Pennzoil Platinum (the one made from natural gas) my engine ***suddenly*** got noticeably quieter. Previously with the Mobil1 it was making faint clicking/lifter noise during the first few minutes of driving

Starts are quieter too, with the Mobil1 it made some light clatter/metallic-y noises on those very first 1-3 seconds of startup, but now with the Pennzoil Platinum it purrs up smoothly from the moment I turn the key

Castrol in my daily driver. The daily would have a slight ticking when warming up with other brands, not with Castrol, so I been using it for over 100k with no issues.

I use Pennzoil Platinum Full Synthetic in my 21 Forester. $23 for 5qt from Walmart and $12 oil filter from dealership.

Have a look on Amazon they do some good deals on oil, I normally stick it in my basket and wait for it to drop.

My old car was Castrol 5w30 Magnatec, £28.50 for 4l on Amazon £43.99 from euro.

Project farm did a bunch of tests on all popular oil brands and amsoil won followed closely by pennzoil ultra platinum. The pennzoil is easier to get so that’s what I use on all my cars.

Using Castrol EDGE Euro 5W-40 after watching a EN owner on YouTube suggested it. Car runs great in this 110 plus days in Texas

I did 100k on Castrol gtx in an f4i plus tens of thousands on other bikes using the same oil. I buy it in bulk and it goes in the whole fleet.

I put mine in around 20k. The first change I did - it had 2 small metal shavings. I got very nervous. Ever since then there has been the powder you have in the pic above. Sometimes more sometimes less. The 2 times I have used Castrol I found more than other times (This could mean it protects less or that it carries the particles better than other oils). I will only become worried when I start seeing shavings. To me it's only an additional monitoring system. Like in a tranny - powder is ok, but shavings mean save up some cash. oh and my car is now at 125k.