Just saw rankings
Valvoline conventional 1
amazon2-5
6th was valvoline synthetic
Who makes Amazon oil?

If you are serious and want the best for your vehicle, contact me at rpiescik@weareoil.com . Give me the year, make, model of the vehicle in question and I will give you a printout for your vehicle.

I have been using synthetic lubricants since the early 90's and have never looked back.
Have a great day!

Bob

Gotta chime in with the "there is no BEST oil" camp.

There are too many variables. Manufacturers spec-and better- are what you want. "Better" here means takes even higher temps or is rated for longer oil change intervals.

I use Mobil1 0W-40 European Formula. They tell me it's a "true synthetic" (group IV) made from polyalphaolifin compounds not hydro-cracked petroleum (group III)

It met the requirements for turbocharged engines in the family. It's so uniformly praised I just rolled into using it in my non-turboed V70's.
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Our 3rd V70

There is no "best" motor oil. For Volvos, using synthetic is the only option. The oil must meet engine specifications, listed in the owner's manual.
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Keeping it running is better than buying new

BND Automotive Cleveland Ohio
Website : BNDautomotive.com

Pete,
What oil or test facility did the Rankings?
Buying oil with other than a Brand name on the jug (mobile, castrol,etc),
might result in inconsistent additive packages and in turn expected performance. A non-oil producer, will buy various sources depending on market conditions. I do not know if re-processed used oil, if mixed into new oil has to be identified on the product.
Art

Art
Best review guides!
Ever heard of them...... me neither
I suppose if you change your oil every 3k or 5 with synthetic most brand oils will suffice.