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Re: Redline 5w40, 10K miles, 2.0 PD TDI [Re: BobFout] #2176013
02/19/11 10:30 PM
02/19/11 10:30 PM
Joined: Nov 2007
Posts: 1,877
saaber1 Offline
saaber1  Offline
Joined: Nov 2007
Posts: 1,877
Originally Posted By: BobFout
It [RL 5w40] went from many hundreds of ppm of Moly to 100 RPM. Previous VOAs (non CJ-4 5w40) still had high moly levels.

This is getting a little confusing. Maybe reviewing the past will tell us if we are talking about one formula change or two.

1) The formula change from lots of moly to zero moly was first discovered in Oct. 2008. Both VOAs done in Oct. 2008 showed 1-3 ppm Moly.

2) Then we saw the UOA in this thread that had moly in the 20s

3) Then you checked with Dave and he said it has 100ppm. Since the previous VOAs had zero, I assume the change from zero to 100ppm was a new formula change. Are you saying that the formula change first discovered in Oct. 2008 was supposed to be 100ppm?

Just trying to figure out if this is a new formula change (sometime since Oct. 2008) or if this is the same formula as the Oct. 2008 one. I guess it could also just be variability with batches or could be lab variability.

"when 5W30 is cold, ...the oil is 35 weight (5+30),...20 w 50 starts at 70 and warms up to 50"
- Kyle, auto mechanic & VP Speedline Motorsports, INTL
Re: Redline 5w40, 10K miles, 2.0 PD TDI [Re: BobFout] #2176787
02/20/11 08:50 PM
02/20/11 08:50 PM
Joined: Mar 2009
Posts: 3,196
BobFout Offline OP
BobFout  Offline OP
Joined: Mar 2009
Posts: 3,196

I think there were TWO formulation changes in the past.

High moly -> No moly
No moly -> Low moly

My guess:

High Moly = non-CJ-4
No and Low Moly = CJ-4

2003 VW Jetta TDI (Sold) / 2015 VW GTI 2.0T
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