Engine oil Castrol or AMSOIL
Castrol 0W30 (a.k.a. German Castrol :thumbup seemed to shear thin very little over a similar interval, which is why I preferred it.
One of the best oils for your '08 FSI engine... I have used 0-30 Castrol GC, before this one came available. 0-40 Castrol is 100% german Castrol... I have been using it for long time 70K miles 0 issues with engine.....
After using German Castrol on my mkv back in the day my mpgs went up significantly.
A few years back I picked up an S65 engined M3 (E90) after work on a Friday. I hit the 155mph limiter that night, Sunday morning it was doing track duty. In 3 years and 50,000 miles it had 3 oil changes and the 1qt of Castrol Edge TWS I kept in the trunk for top-ups still had some oil in it!
My car uses about 0.5 qts of oil every 5000 miles. I think castrol 5W 40 is the best oil for this car.
I did notice the German Castrol had a smoothing effect on the big 5-cyl.
Amsoil 10-30 was my choice on my 200,000 mile 2001 jetta + i changed @ 10,000 usually 4 to 6 months. car was chipped etc, about 300 tq + 275 TQ with a KO-4 + APR tune etc.
AMS oil 5w40 "European Formula" after first 5k. Just dumped the first oil after 10k of hard driving. Still had lot's of life left in the oil, and no noticeable consumption as we recovered almost all of what was originally put in (4.4 of 4.5L)
For my 24v I use: Castrol Edge Professional OE 5w40
For what it's worth I run Amsoil 20-50 in both holes on my 01 sporty 1200, never had any issues.
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