A few questions on my new A4

[Grant Lenahan]

On Feb 22, 2007, at 11:00 AM, Tyson Varosyan wrote:

> Hi guys, a few more questions:
>
> Per previous post, Just bought a '98 2.8L A4 5spd.
>
> 1. I read online that this car has the tosen diffs
No. One torsen in the center.  Normal front and rear. rear has EDL.

> with electronic diff
> locks. How hard is it to install a manual bypass for these?
Impossible.

> I LOVE the
> ability of my 4000Q to manually lock diffs - makes the car hella more 
> fun on
> gravel. And before I get lectured on it - yes I know the dangers of 
> driving
> on pavement with locked diffs.
>
> 2. I didn't get the book with my car and the fuel lid says that the 
> required
> fuel octane (R+M)/2 is 87/91. WTF? Is it 87 or is it 91?? I see that 
> it's a
> 10.5:1 compression motor, so I am inclined to think that to my regret, 
> it
> will want 91 Octane, but is that right?
Not sure, but its likely that the car has a knock sensor, and that it 
performs optimally with 91+, but can survive - at reduced power - on 
87.

Grant
>
> Tyson Varosyan
> Technical Manager, Uptime Technical Solutions LLC.
> tyson at up-times.com
> www.up-times.com
> 206-715-TECH (8324)
> UpTime/OnTime/AnyTime
>
>
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