Question for the smart ones
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Audiworld Junior Member
Joined: Jun 2000
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Question for the smart ones
I just traveled 200 miles today and I noticed a couple of things.
1) when the oil gets hot I run at 3 bar .. is that too low? I run with 15w-40
2) What does each bar stand for in psi does a 3 bar equal 30 psi or what is the rate.
3) also how do u read the bar, when you look at it while driving (the gauge is at a angle it reads higher than if u look at it straight on. Which way should it be read? Wierd question but just curious...
1) when the oil gets hot I run at 3 bar .. is that too low? I run with 15w-40
2) What does each bar stand for in psi does a 3 bar equal 30 psi or what is the rate.
3) also how do u read the bar, when you look at it while driving (the gauge is at a angle it reads higher than if u look at it straight on. Which way should it be read? Wierd question but just curious...
AudiWorld Super User
Joined: Mar 2000
Posts: 9,281
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Re: Question for the smart ones
I probably shouldn't be answering this...cause I'm not qualified!!
Pressure depends on what your doing: WOT, idling or cruising?? 3 bars would be okay for idling but too low for the others!!
But the guage should be read from straight on. The angle does cause a parallax when reading the guage. Although I wouldn't worry about it...the guages themselves usually aren't that accurate!!
Also, 1 bar ~ 14.5 psi
Hope this helps
---
Andrew
90 80Q
91 90
95 90Q
Pressure depends on what your doing: WOT, idling or cruising?? 3 bars would be okay for idling but too low for the others!!
But the guage should be read from straight on. The angle does cause a parallax when reading the guage. Although I wouldn't worry about it...the guages themselves usually aren't that accurate!!
Also, 1 bar ~ 14.5 psi
Hope this helps
---
Andrew
90 80Q
91 90
95 90Q
Member
Joined: Mar 2000
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That sounds about right. My 90Q would idle at about...
...1.5 bar and go all the way to whatever the max was when pushed. I think I would be more concerned about NOT getting any oil pressure than what the pressure whould be. If it's reading, you should be OK! :-)
BTW, I think Audi says it should be above 1.6 or 1.8 bar when driving, which I assume means with some throttle.<p>Charles
2000 Nissan Xterra SE V6 4x4 (personal)
'98 A4 2.8 Q-Tip (business)
BTW, I think Audi says it should be above 1.6 or 1.8 bar when driving, which I assume means with some throttle.<p>Charles
2000 Nissan Xterra SE V6 4x4 (personal)
'98 A4 2.8 Q-Tip (business)
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Re: Question for the smart ones
1) 3 bar is about 45 psi, not bad. General recommendation I go by is 10 psi per 1000 RPM engine speed when up to temperature. You can do the math for bar conversion.
2)A bar for all practical purposes = 15 psi
3) As others said, best way is look head-on at the gauge, not from the side. Wouldn't expect big difference between head-on vs. normal driving position reading.
2)A bar for all practical purposes = 15 psi
3) As others said, best way is look head-on at the gauge, not from the side. Wouldn't expect big difference between head-on vs. normal driving position reading.
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