We're not talking about your naturally aspirated Mercedes. This thread is about the merits of thin oil in a modern GTI.
The applications are totally different here.
Deven,
Isn't RP's 5W-30 HTHS like a 3.8? If so then it's more like a 40, and should have sufficient film strength. Yours is a case of finding a non-approved oil that meets the set requirements,and may be more optimized for your intended useage. If your car was unmodified and street-driven only, would you run the same oil and change interval?
For street use, and when taking cost into effect, I'm not sure you can beat an off-the-shelf 502/505/M229.5/A40 spec oil.
The applications are totally different here.
Deven,
Isn't RP's 5W-30 HTHS like a 3.8? If so then it's more like a 40, and should have sufficient film strength. Yours is a case of finding a non-approved oil that meets the set requirements,and may be more optimized for your intended useage. If your car was unmodified and street-driven only, would you run the same oil and change interval?
For street use, and when taking cost into effect, I'm not sure you can beat an off-the-shelf 502/505/M229.5/A40 spec oil.