I own a 03 Porsche 911 C2, base model, completely stock. I bought the car in July of 2018 with 81K on it. It had Liqui Moly Leichtlauf High Tech 5w-40 in it and that's what I've been using since then. I've been changing the oil with about 4-5K miles on it.
Below I've posted a virgin sample of the oil, along with another UOA after 4K.
There's a very famous engine rebuilder that says that I should be adding one 300ml can of Liqui Mily Cera Tec Friction Modifier at each oil change.
Here's a link to that product:
Link to Cera Tec on Amazon
QUESTION: Do you guys think it's necessary to use the friction modifier? Any other thoughts/concerns?
Virgin UOA of Liqui Moly Leichtlauf High Tech 5w-40:
UOA sample taken Dec 8, 2018, after 4K miles on my 03 Porsche 911 C2, total miles on the car at the time was 85K.
Below I've posted a virgin sample of the oil, along with another UOA after 4K.
There's a very famous engine rebuilder that says that I should be adding one 300ml can of Liqui Mily Cera Tec Friction Modifier at each oil change.
Here's a link to that product:
Link to Cera Tec on Amazon
QUESTION: Do you guys think it's necessary to use the friction modifier? Any other thoughts/concerns?
Virgin UOA of Liqui Moly Leichtlauf High Tech 5w-40:
UOA sample taken Dec 8, 2018, after 4K miles on my 03 Porsche 911 C2, total miles on the car at the time was 85K.