Rotella vs Mobile 1 - Page 4 - PeachParts Mercedes-Benz Forum

JHZR2 · #46 04-21-2010, 12:24 PM

Syntec is not a blend, it is a group iii, iv, v blended oil.

Just like M1.

Syntec just gets a black eye because it was the first going to group III syn as the primary basestock.

But it is not a blend; blends of group iii, iv, v synthetics are not considered blends.

75Sv1 · #47 04-21-2010, 03:10 PM

Not all Syntech are group 3 either. If you look at the labels, there is a 5w-30 or is it 0w-30 that is made in Germany. It is sold at Autozone. It is suppose to be a group 4. I have never used it.
Also, I recently read (on BOITOG) that Ford Motorcraft has a new diesel oil out. 5w-30.
Now, I used to run the Syntech 5w-30 in one of my Ford Contours. I never had any real problems with it. I did try M1. I didn't like it, but I think I used 20w-50. Not good in that car. I did run Shaeffers, the blend. It did OK. I swithced to Pennsoil Platinum, in both of my Contours. They seemd to like it. They aren't deisel rated though.
I think M1 did a formulation switch about 4-5 years ago. They won't release their formulation. I here its a mixture of group 3 and group 4, possibly group 5. I did hear Ferrari ran Shell Helix group 3 in their F1 engines at some point. Now wht they ran and what's on the shelf are very different though.
Tom

JoeBobJr · #48 04-21-2010, 04:05 PM

Quote:

Originally Posted by mtbguy

Autozones in my area (Atlanta) are running a special this month on Delvac ~ $8/gallon. I'm stocking up!

FWIW- I have used Rotella and Delvac for the last few years and like them both.

Same here! I seen it today when I went to get Rotella and seen the Delvac so snatched that up instead. Just finished doing my oil change earlier with a STP filter. It looked like a decent filter so went for it.

JHZR2 · #49 04-21-2010, 04:11 PM

Quote:

Originally Posted by 75Sv1

Not all Syntech are group 3 either. If you look at the labels, there is a 5w-30 or is it 0w-30 that is made in Germany. It is sold at Autozone. It is suppose to be a group 4. I have never used it.
Also, I recently read (on BOITOG) that Ford Motorcraft has a new diesel oil out. 5w-30.
Now, I used to run the Syntech 5w-30 in one of my Ford Contours. I never had any real problems with it. I did try M1. I didn't like it, but I think I used 20w-50. Not good in that car. I did run Shaeffers, the blend. It did OK. I swithced to Pennsoil Platinum, in both of my Contours. They seemd to like it. They aren't deisel rated though.
I think M1 did a formulation switch about 4-5 years ago. They won't release their formulation. I here its a mixture of group 3 and group 4, possibly group 5. I did hear Ferrari ran Shell Helix group 3 in their F1 engines at some point. Now wht they ran and what's on the shelf are very different though.
Tom

Gc is primarily grp iv. There truly is no benefit to grp iv or v vs iii, oyther than cold flow. Iii is better in many key practical areas.

The value proposition and inferiority argument of grp iii holds no water.