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View attachment 128462
Also you serm to have forgotten your claim that you vw says you can use both certifications of oil from vw508 to vw504. Can you post your oil requirement sticker under your hood that says that. Youd have the only vw that has that.
Just going to lob this from the bleachers as this whole exchange strikes me as being akin to trying to pee up a tree, but it would appear the disconnect is the result of parsing individual segments of statements (like what is highlighted in red) and not the actual statement in its entirety here.
It dumbs down to two linked parameters, which, by themselves, are pretty straightforward:
1. Using a lubricant that does not meet SN Plus or an equivalent specification CAN cause damage.
So, not WILL cause damage, but it CAN cause damage. Like, if you put in City Star, there's a possibility that damage could arise from using this lubricant. Pretty straight forward.
2. If you proceed with #1; if you use a lubricant that does not meet the SN Plus or equivalent specification, and it DOES cause damage, this may not be covered by the vehicle warranty.
Now, the dealer/manufacturer would need to prove that the use of the non-spec product was the source of the damage in order to deny warranty. If you were running Redline and your timing chain guide disintegrated, resulting in a warranty claim, the dealer and OEM would first need a reason to try and point a finger at the oil for causing this failure. This could be further complicated by existing TSB's for this issue (like Ford had for the Modular) suggesting that this is a materials/QC issue.
On the other hand, if you were running ND30 and your engine seized due to sludge, they've got very good grounds to blame the non-spec lubricant selection and deny coverage.
Ultimately, if you run City Star, Redline, SynLube, AMSOIL SS, HPL, ND30...etc you are not voiding your warranty. However, you may be setting the stage for coverage denial if the product is of insufficient quality (City Star, Synlube, ND30) in the event that there is an issue as a result of that product's use that can be easily identified by the dealer/OEM.
If BMW tells you to use LL-01 and you use SuperTech conventional 5W-30 and the engine sludges up, BMW has legitimate grounds to deny you coverage. On the other hand, if you are using AMSOIL and it breaks a valve spring, they don't.
If you don't want to deal with the potential headache, it's always easiest to just follow the OEM recommendations.