Engine oil LIQUI MOLY or Castrol
I originally ran 10k intervals as recommended by VW. Early oil changes were done with Castrol Edge OE 5W-40(exact same type the dealership uses) Later on I thenswitched to Liqui Moly 5w40 Leichtlauf high tech and began running at 5K intervals after reading quite a bit about the 10k intervals being too long.
They also have the 5qts of Castrol Edge 5w-40 for under $30. I've been running that in my cars since 2005.
Last change I did was with Castrol Edge 0w-20 no issues.
I only ran liqui moly in my TDI and have been running it in my R since I bought it. IMO they are one of the best brands.
I've always run conventional Castrol 20/50 in my Gti's (past and current Turbo) without issue.
The liquimoly additive, Oil Additiv p# 8352, did help me for a bit but now it's back to the usual oil guzzling. For my choice of engine oil I use 5W-40 Toptec 4100 liquimoly .... I think it reduced consumption somewhat over OEM castrol.
I have the cr150 tdi and am running liquimoly 10w60. Have not used a drop of oil running the cr190 turbo. Oil is just starting to grey ( diesel thing) after 5500 miles. 0w-40 505 mobile was burning off on me and god forbid pentosin 5w-30 507 smoked like a chimney - I got multiple engine lights having to pull over and undo the cap with the engine running, downright embarrassing. Going to attempt amsoil (not going Walmart mobile 15w-50, give me liquimoly) 5w-30 diesel and see how that works. 15w-40 works great but still barely makes it to 10k for me. I am finding it hard to run gas/diesel oils like liquimoly without a 5k interval, 7qts of liquimoly 10w-60 for $65 Amazon. Practically have to run strictly diesel specific for me, hard to find heavy duty synthetic diesel oil at common shops sometimes.
Castrol Edge 0W40 A3/B4 (European Formula), about 27$ per 5 quart jug at Walmart. Made in either Germany or Belgium. A real synthetic, Type-4 PAO based (no Type 3). Meets the strictest oil requirements from ze Germans.
Neither Castrol (OE - 5-40, or 0-40), or Liquimoly 5-40 burned a SINGLE DROP in about 5-6k miles!! Why would I buy a \"High performance\" oil, only to constantly need to top-off, like I own a crappy Harley. I never follow the crowd, Mobil included. Liquimoly and Castrol are great. Someone else made a great point. When do you ever,.....EVER see a car die or even have ANY issues caused by oil. My father had a car last 260K miles on absolute garbage oil from LubeXpress (Last meaning he donated the car with 120LBS compression, each cylinder). You will DEFINITELY see issues in your Transmission, clutch, suspension, RUST, steering, interior finishes, etc. before you will EVER see an issue related to Oil. Picture all the fox-body mustangs that are absolute TRAIN WRECKS...that still run and have power...but everything else is destroyed THAT SAID...Just make sure to use a VW spec oil in your TSI. Coking of turbo's is no joke.
Started using Liquimoly 5w-40. Wow what a difference! 3/4 qt. per change cycle. There really is a difference. Same spec as the others though.
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