Engine oil RED LINE or AMSOIL
I love red line, search for my UOAs... i've tried most of the top teir vw502 approved oils in the FSI (Motul xcess, motul specific, total energy), and they don't even come close to touching red line with regards to longevity / performance.
4 qts Redline 5w40, 1 qt Redline w40 Race Redline blows away the competition... Lumps of ZDDP and Moly with the Race oil mix, fuel dilution pretty much disappeared, and viscosity/flashpoint are well within reason.
I would stick with a tested oil like Red Line 5w-40 or GC, but that's me.
Sticking with a single weight is a better idea than mixology IMO..
The only oil I used in my Audi before Amsoil was Mobil 1, and this far surpasses it.
You will not get better, check the results yourself, I gained 9hp and 6 ft lbs of tourqe and increased my gas mileage per tank 35-50 miles.
But from my experience with it, it has made a difference in several of my vehicles (not only VW).
I have been running redline 5W40 since 5k miles in my 08 GTI and I noticed an immediate improvement in turbo spool up. Others have noticed this improvement on other turbo cars as well.
i have used Amsoil for going on 10 years with great success. I have never had a problem or failure with anything i have used it in.
I used to use mobile 1 fully synthetic 5w 30 with a quart of lucas synthetic oil treatment and it work pretty good and i could get about 5k out of it. I just got hooked up with an amsoil dealer so im now using amsoil's european 5w 30 and im going on 7k and its still pretty effin clear
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