What oil and octane fuel do you use?

[Def30]

I have looked into this and everybody has their own "expert" opinion, but I want to know what everybody on the forums personally uses.
-Oil wise BMW of Bellevue recommends 5W40 Synthetic, and Orielly/Autozone
recommends 10W30 Conventional
-Fuel wise Bmw and owners manual recommend regular unleaded 87, while forum users say use supreme unleaded 92

Again, I'm not asking whats better (because there are already forums like that), but I wanna see what most e30 owners use.

My current set up:
Vehicle: 1990 325i
Oil: Castrol GTX 10W30
Fuel: Shell or Chevron Supreme Unleaded 92

[The Volta]

Oil: 10w40
Fuel:87 ( the m20 does not require 92 unless you have a chip for it)

Also read this so you understand why.

http://auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question90.htm

[bastianshaw]

Valvoline VR1 20-50<---get this from amazon for around 5.30 a quart do it and never use anything else...ever

91 octane because I have a chip otherwise would run 87

[Jim Lepage]

Oil: Castrol GTX 20w50
Fuel: 91 octane

[Keith M]

20-50 oil, brand doesn't matter and 87 octane fuel.

[slammin.e28]

I use(d) in the M20:

20w50 dino oil.
87 octane.

[M3TROY]

Mobil one synthic 5-30.
shell or mobil 93 ONLY! in a pinch sunoco or BP 93.

[flash 23]

my m42 gets 10-40 oil and 91 chevron fuel

[priapism]

Valvoline VR1 20-50<---get this from amazon for around 5.30 a quart do it and never use anything else...ever

It doesn't damage your cat?

[agile30]

M42 stock. 0w40 mobil with c16 fuel sometimes with e85

[stamar]

20 50 currently oreilly brand synthetic. whatever is on sale.

or 15/ 40 diesel oil

87 octane.

[Robotin]

Castrol GTX High Mileage 20-50

Premium 91 octane fuel.

honestly... in my last car i ran 87... i can feel a difference...

[smooth]

how can you feel a difference? lol

anyway, 91 but I have a chip or else I'd be running 87
in fact, with gas hovering around 4 bucks a gallon I'm going to put my stock chip back in and sell my performance chip. barely drive my cabrio these days anymore

[RainierHooker]

The Eta and iS get Castrol GTX 20W-50 and 87 Octane.

The M3 gets Redline 10W-40 and 91 Octane minimum.

All the cars are essentially stock, although the eta has an -027 DME in it and a spare -027 with a Dinan Chip for when I'm feelin' froggy and don't mind a bump to 91 Octane.

[QUKBMER]

Redline 20w50 syn oil and 91 octane bro.