Here I come again with several questions. I do not know what the board specific etiquette is: should I have subdivided these into separate posts? If so, feel free to tell me and I will rectify my behaviour.
Onto the questions:
- Oil: It is my understanding that MY04 US turbos came from the factory with the (evil) 0W40 and should, per Porsche factory spec, keep being filled with 0W40. My mechanic agrees. RoW cars still take 5W50 and I am *really not comfortable* with a 40-weight oil in a turbo configuration. Kevin at UMW agrees with me and recommends 5W50. What is the board recommendation? I brought back up from the past a post relative to a source of 5W50 which turned out to be NLA... advice would be helpful.
- Oil, rev II: I noticed MY04 US cars don't have an annual maintenance any more(thanks for providing the checklists - my service manual is stuck toghether so badly that I can't read anything from there), effectively increasing the oil change intervals to minor maintenance, that is, 2 yrs/15kmi. Again, I am *really not comfortable* with having the same oil in the car for 24k km, as much as I don't share the 'oil should be changed every 3kmi' opinion that is a lot more prevalent in the US. Am I just being paranoid, again? I'd like to keep this car going for a lot of miles - I don't tend to replace my cars, I tend to keep them and add others in time.
- Oil, rev III: I started off at 42,320 miles in San Diego with two lit segments in the oil check. I added a quart, it went up to six lit segments. All well and good. I am now at 46,1xx. I have four segments lit therefore the engine burned 2 segments - 500g - of oil in 3800 miles. That comes out to 81g every 1000km, or 810g per 10k km. This is so much less (about 8-10 times less, to be precise) than my Euro coupe that I have to ask... is it normal? The european car will devour oil if driven slowly - and sure enough, the tips of the exhaust will darken etc. This one does not.
- Other fluids: do I follow the factory guidelines or do I replace transmission fluid earlier, given that four years have passed? Also, do the pentosin for the clutch/steering and the coolant need replacing before, say, ten years?
- Clutch: the clutch seemed fine when I got the car. Now the engagement is decidedly brusque and it seems to be happening very close to the top of the pedal motion. Is this a sign that the clutch is about to leave this world? If so, given the intention of putting an UMW stage 2B kit in the car, what replacement options do I have? Lightweight single mass flywheel? Dual mass with GT3 clutch? Pros? Cons?
- PCM: I have a 'voice' button in my PCM. The online manual here doesn't mention a 'voice' button and unfortunately the original manual is not available, though I did order replacements. Does this mean that my PCM is phone-enabled and therefore will accept the bluetooth module that Eric has? This would be (very) good news. Does this also mean that I have to order a different PCM manual, to be accurate? (Yes, I am anal, thank you for asking).
- Tyres: the dealership where I bought the car refinished the rims (on the car, getting paint on the calipers... yes they should be shot) and put new tyres on the car. Lovely Pilot Sport Rib AKA MXX3. These were very mediocre tyres in 1995, especially in the wet. My Euro car has Yoko Advan Sport tyres on it and I'm very happy with them, save for a tendency to drone and for decidedly suboptimal duration. What is the consensus stateside? PS2? Yoko? RE050A PP? What I would like most is a clean, progressive breakaway at the limit and good wet behaviour. The Yokos provide both. So do the RE050A PP, on a (very) different car... the PS2 is said to be a grippier tyre, with worse wet performance though. Again, opinions?
- Suspension: Is the RoW kit from carnewal the best way to go? Will sunset have the same parts for less money? I will not believe for a moment that importing parts from europe is a cost effective way to go, even with EURUSD at 1,349.
- Top: my top has three issues, one is wear on the outside, the second is that the glue on the flap of the interior liner on the C-pillar on the driver side has come off. I assume this can be reglued without particular issue, right? I also assume that a competent shop can replace the outer shell - which can be ordered for a SURPRISINGLY SMALL amount of money from Porsche - and reuse the interior. Am I correct? Finally - a nice bird visited the 'static' pieces of cloth that cover the rollover protection and the crap has stayed there for too long. There now is a stain which isn't going anywhere. Since I was going to change to the grey top anyways, does anyone have the part #s handy - or can point me to a place where I can get them?
Bonus question: some people in europe actually *remove* the whole mechanism before putting the hard top on for the winter, to avoid having the top stay folded for several months (here, from November to march, at the very least). Is it feasible? Is it advisable?
Bonus question II: when the top latches and unlatches there is a very noticeable SNAP noise. Is it supposed to be there? Can it be mitigated? It's a bit unnerving.
- Leather parts: I discovered that the A pillars and the part to which the sunvisors attach are leather on my car - and from the order guide, they seem to be leather by default. I am performing an E70 retrofit and in the spirit of overkill which always seems to permeate my decisions, I was wondering if the door mirror finishers and the dome lamp surround can also be ordered in leather. I recall seeing the option somewhere but it doesn't seem to be there in the MY04 cab order guide. Can someone confirm/deny and if possible provide part #s?
- Bonus leather part question: Are all hard tops alike? I.e. can I go purchase any 996 top with a black interior or were there different (vinyl / leather) options?
- Short shift kits: again carenewal mentions that the factory SSK retrofit requires 'destroying rubber bushings' and provides a kit with a whole new carrier, identical to what the factory would've provided if the option had been ordered to begin with, per their wording. Is this the case? Can this be ordered from Sunset?
Thanks for reading up to here :)