Engine oil Shell or Pentosin

based on oil analysis done by some members I been using rotella synthetic 5-40 ever since I got the car 7 yrs ago.. while not a group 4 oil it does the job and I aint spending $8 a quart in oil for a regular car opcorn:

I'm using Rotella T6 5w40 in my car. For the money, it's one of the better buys for oil since it holds up so well. It's got good additives that don't shear down quickly, decent amounts of zinc and phosphorus, and it works in just about anything - cars, trucks, diesels, bikes with wet clutches, etc.

rotella t6 5w40 diesel oil. nothing else.

5w40 pentosin vw 502.00+ oil. Hasn't let me down in any of my motors yet!

I use Rotella 5-w40. I've been using it for like 5 years in my 02 1.8t and haven't noticed any wear really at all. I drive pretty aggressive, redline 3+ times a day.

I have done really well with Shell Rotella T6 5w-40 as well. All are good oils that you can get away with changing every 5-6,000 miles.

This Rotella T run looked good.

I have been trying the Shell Rotella T6 out for the last 3 changes. seems to be working out quite well so far. Just checked my fluids yesterday after 2k miles and I only needed about a quarter of a quart. not too shabby.

When I bought my '80 MB 300SD I did an oil chamge with 15w40 Rotella. The first day it dropped below 35* it struggled to start. Below 25* it needed a few hours of block heater time. I changed it out to 5w40 Rotella T synth and 6 years later I've still never plugged it in, even in -10*F.

So far, though, it appears that engine wear and presence of contaminants, as shown by UOAs, are significantly "better" with Rotella T in my car's engine than they were with any other oil I used, and especially Castrol Syntec 5W-40.