Engine oil Castrol or Motorex

Generally, brand matters a lot. Amsoil, Mobil 1, and Castrol are all great.

I run Castrol in my older cars and Mobil 1 in newer cars that I care more about.

I usually change the oil every 7500 miles and tend to use Castrol synthetic 0-40.

I just use German made Castrol Edge 0w40 (502 certified) oil. Ive used this oil since the car had its first oil change and it does not burn a drop and car runs great, i now have 59k miles and shes drives new as ever.

I use 5W40, Castrol Edge, has the 502/505 certification, if it doesn't don's use it. You can use the 0W40 European Formula as found at Walmart; is also 502 certified.. This is a good all-year 'round oil.

Castrol EDGE 5w-40 is what I use.

Did another oil change today, and not a lot of consumption, still pulled 6.5 quarts out of the engine. Been using the Castrol Edge 5W40, and on the back has the 501, 502 and 505 certification.

Motorex 60:1 piston and rings go 180 hours with out issue, could go longer but i change it every winter, powervalve has yet to need to be seriously cleaned in 3 pistons.

I went with the motorex recommended oil. Worked great.

I use Castrol syn in our VW because they call for Castrol syn. The only thing I've found is that our VW which called for Castrol Syn 0w20 always sounded clattery - until I switched to 5w30. I guess we are suffering a little MPG at the cost of a quiet engine but I won't use the 0w20 again.

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.