you will usually NOT really know what lesser oils are doing to your engine, but if you want to keep it healthy a longer time true synthetic PAOs + Esters are best, or use a decent fake synthetic group III as most are + change more often. i believe you have a 7 qt capacity which is a plus for sure. i am next door in Pa + a 10W works for me as anything but true synthetics break down faster with wider spreads aka 0W 40 for instance. in my 300 tq 275 hp 1.8T jetta with a small 4.25 qt capacity i ran Redline 10-30 for 200,000 miles before trading for my present TT 1.8T 300 hp + TQ its lower miles but looser so it gets Redline 10-40 for a winter fill at summers end + rarely driven, come warmer weather i top off with Redline 15-50 + see more vacuum + less consumption. both Vag cars are 2001, bought jetta new + the TT a few years ago with about 40 thou on it. love the tunability of them with lots of options. theres a shop in Lebanon Pa APTuning.com good people i use when i don't DIY it, got both cars APR tuned there, fair prices for quality work IMO!! they do tranny work for local dealers, check out their site!! just wondering about a turbo upgrade as you can overwhelm your drivetrain with simple bolt ons, upgrade exhaust is a biggie, add a tune + WOW!! i am limited with port injection but todays Vag cars with direct injection can be greatly enhanced with just a PROPER tune, check out goapr.com for some impressive dyno #'s
