Strange look of Mobil1 10W30

[chinee]

I changed the oil in my wife's Sequioa last weekend and had only had 2.5 qts of Mobil1 10W30 in the garage, so I went out and got 4 more quarts. When refilling, I drop a funnel in the fill hole, and pour two quarts at a time. I had one of the old qts in one hand, and a newly qt in the other; pouring them together, I noticed that they were different colors. The "old" oil was darker, and it was only in the garage for a few months, six months at most.

I looked at both bottles and the labels were identical. Anyone have any idea why there was a difference in color?

 

[sbc350gearhead]

Maybe a formulation change........we need some new voa's.

 

[grcmptrnrd]

I noticed this earlier on Mobil's site; a VOA would be nice to see just what changed:

Q. I've noticed that Mobil 1 has a lighter shade than usual. What is the reason for this change? Will it affect Mobil 1 performance?
A. In the summer of 2004, we improved one of Mobil 1's additives, which resulted in a slight color change. Rest assured that this change in color will have no effect on Mobil 1's outstanding performance. All versions of a specific Mobil 1 product - prior to and following the color change - can be mixed without any effect on product quality or performance.

 

[buster]

Hmmm, interesting. Where did you find that question, I didn't see it on the website? What additives are they refering too I wonder? Can someone else send off a VOA of some recent Mobil 1? I'm sending off a sample of GC Monday. BTW, how much is it for a VOA with TBN?

[ October 31, 2004, 01:37 AM: Message edited by: buster ]

 

[medic]

It seems like Mobil changes their formulas quite often. I'm kinda thinking this would be a very expensive operation.

I'm going to assume change was for the API SM & GF-4 ratings.

Buster, are you sending a VOA of GC? Is it the new American GC, or the German GC?

 

[Blue99]

Based on Mobil Drive Clean info from Carpy, organic moly is the anti-wear additive that generated the darker colored oil.

Mobil DC was on the shelves this past summer with both color variations, based on the blender/packager that filled the bottles.

We also had a post recently about Pennzoil changing from dark to light, so the darker tinted oil may become history.

 

[buster]

Found it. Sorry about that. I'd like to see what changes they made. VOA anyone?