Engine oil Castrol or AMSOIL

Just completed my first hands-on oil change on the GTI; used the German 0W-30 Edge, since VW still owes me one more filter and Castrol oil change in a few months.

A definite 'no' on that. VW says no and it's been shown many times. The factory fill is plain old off the shelf oil (generally Castrol).

Yeah...same reason I switched. I love Amsoil...and so do my engines trannies and diffs. It just gets too expensive using the Amsoil engine oil with the oil change frequencies that I use ( Every 8,000KM ).

Rotella T6 here. I was a long time Amsoil guy, but it's just too fracking expensive, especially with the amount of miles I drive a week.

Have my best experience with Castrol 0W30 (European $8.99/qt) Minimal lifter noise and run it 5k between changes. Also, use OEM oil filters.

i tryed the castrol edge sport 10w-60 and its working great (very smooth & quiet,etc... any way better than the 4w-40)

always ran castrol gtx diesel 15w-40 in my old 1.5 no real reason but when i bought the car it came with a case in the trunk so i just kept at it. motor never had a problem, and it ended up getting swapped into my buddy's rabbit and boosted.

Edge 5w-30 did great for me. It's a great product, turning in the best 1.8t UOA I ever saw. There are PLENTY of great products dirt cheap on our shelves. I personally feel SynPower is most worth of my money, on a full price basis. Otherwise, I'll buy any other NAME BRAND synth when its' $4 or so. I actually nabbed a bunch of Quaker State 5w-40 from BigLots for $4ea. QS is a sleeper oil, esp at the right price. High moly too, great for break-in.

I used Edge in my APR 2.0TSI over winter, did a lab report and wear was minimal, actually the same as a Motul 5w-40 sample from the same mileage.

GC 0W30 is PAO based oil. PAO and Ester based oils are much more stable and clean engines much better. People who need 502.00 approved oil simplly LOVE that thing!