Originally Posted By: whirldy
Hello! First post. Apologies if wrong place to ask in this thread. People "say" Full-SAPS might effect carbon build-up in certain (2.0T TSI GEN 3) engines. That "true"?
Thank you!
This is how you mitigate that problem:
1. Change it every 5K.
2. DO not use dealership Castrol 5W40. Buy Castrol 0W40 or M1 0W40 in Wal-Mart. They meet MB 229.5 (unlike Castrol 5W40) and they leave much less deposits in the engine.
3. You can use Mid-SAPS oils like I do now. I use Pentosin 5W40 which meets VW 502.00 and VW 505.01 as well as MB 229.51 (very important). I think that both M1 and Castrol 0W40 are better oils, but Pentosin is proven stout oil. If you live in bit warmer area, that might be good option. Bad thing is, it is $20 more expensive then M1 or Castrol 0W40 in Wal Mart.
4. If you live in California, then you might be able to use Low-SAPS oils which are very low in TBN, and cnnot take high sulfur gas in rest of 49 states. I treid M1 5W30 ESP three times, and TBN drops to 1.9 after 4K. Not confident that I could do 5K. However, California ha low sulfur gas, so it might do much better there.
EDIT: After you break in your engine, do not drive it like grandma! Once engine reaches proper temperature (oil, so after some 7-10miles) push it hard, that could help too.