Engine oil Mobil or Castrol
Have used a few brands, I think it’s running Castrol 5w40 right now.
Castrol 5w40 Euro spec, my car runs better on that than 5w30
I went with Mobil 1 5w-30 ESP. I read around the Bob is the Oil guy and that is what I came up with what I would best for WRX that will be tuned with an intake (My opinion). I am sure there are other good options.
I use just regular old Castrol Edge full synthetic 0W-40 in my 2012 Jetta year round, currently has 156k miles on it (251km).
I used both wrong spec oil and wrong weight oil on my 06 Rabbit 2.5 for about four years. I was an idiot. However, nothing ever happened. I'm at 223,000 miles and the cams look brand new, engine runs smoothly.
Other vehicles, I ruin normal Mobil 1 until about 80-100K miles and switch to high mileage. Put over 200K on a '04 Civic Si on all Mobil 1 and oil analysis came back great every time.
Castrol works fine.
Dont use the cheap stuff. Liqui moly or Castrol!
This is what I use… with a Fram synthetic oil filter.
I tried using valvoline, that burned noticeably faster. But castrol high mileage has been pretty good.
At my 18,000 mile service, barely dropped off full. V.W.they told me at the service has now went with Mobil 1.3,000 miles later down now a 1/2 quart.
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