There are a number of VW 504/507 oils available to VW/Audi owners. All of them claim to be the best. Is there any way to get some comparison of these oils? Thinking about this for a while resulted in me remembering the Lubrizol Relative Performance Tool. Using that tool I looked at eight common 504/507 oils. The results were very interesting. I'll list them in order below and include a .pdf file with the spider graphs produced by the tool.
#1 - Mobil 1 ESP 0W-30
#2 (Tie)
Motul 8100 X-Clean+ 5W-30
Castrol Edge 5W-30 LL
Ravenol SMP 5W-30
Red Line Professional-Series TD Euro Motor Oil
Total Quartz Ineo Long Life 5W-30
#7 (Tie)
Ravenol VSW 0W-30
Liqui Moly 4210 0W-30
The Mobil oil takes 1st place because the MB 229.52 spec gives it the best fuel economy. Those oils tied for 2nd place have the MB 229.51 spec, which produces less fuel economy. The two oils in 7th place have only the VW 504/507 approval.
In choosing one of these oils, I think the question is, "Do you want to spend $50-55 for 6 quarts of the Mobil 1 or $25 for 5 quarts of almost as good Castrol Edge 5W-30 LL"
#1 - Mobil 1 ESP 0W-30
#2 (Tie)
Motul 8100 X-Clean+ 5W-30
Castrol Edge 5W-30 LL
Ravenol SMP 5W-30
Red Line Professional-Series TD Euro Motor Oil
Total Quartz Ineo Long Life 5W-30
#7 (Tie)
Ravenol VSW 0W-30
Liqui Moly 4210 0W-30
The Mobil oil takes 1st place because the MB 229.52 spec gives it the best fuel economy. Those oils tied for 2nd place have the MB 229.51 spec, which produces less fuel economy. The two oils in 7th place have only the VW 504/507 approval.
In choosing one of these oils, I think the question is, "Do you want to spend $50-55 for 6 quarts of the Mobil 1 or $25 for 5 quarts of almost as good Castrol Edge 5W-30 LL"