Dirty Oil

[ShadowZ]

Thank you for taking the time to highlight some great information Mark.

 

[Philth]

I am not a chemist so I could not give you a more thorough answer right this second. It would be best asking a chemist who works for any oil company with knowledge of the additive packages or a VW engineer.

Amazing. You throw the Valvoline sales pitch like you are. At least Mark has something credible to add.

 

[Philth]

The additive packages are different and react differently because they are designed for the application. If my memory serves me correct, and I can not verify at this time since I am not on the VPN, 507 is diesel spec. Diesels generally run cooler than gasoline engines and at lower RPM. There are many reasons why the interval is what it is for VW and other euros.

Has nothing to do with diesel's running "cooler". If this was the case, gasoline oils would have shorter OCIs, correct? Yes, 507 is diesel spec; it's a low SAPS oil for the diesel particulate filters, thanks to the EPA. However, since around the year 2000, VW has gone to extended drain intervals with most all of their cars, diesel or not. This would include gasoling spec'd oils, such as 502, 503, 504, 505, etc.

 

[ShadowZ]

I'm not selling it, it is pointless to try. It's like trying to convince someone that miracle whip is better than mayo (which it is), or that Mustangs are better than Camaros, but it is all personal preference.

I will leave this thread alone now.

Good Night.