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E34 (1989 - 1995)

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  #1  
Old 08-14-2014, 10:40 AM
WeedSmokinFool WeedSmokinFool is offline
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Mein Auto: 1992 BMW 525i
Knocking from engine

Can an overdue oil Change cause lifters to knock?

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  #2  
Old 08-14-2014, 10:48 AM
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It can cause them to burnish, hang, and therefore tick loudly when the cam comes around.
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1995 E34 540ia
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Ongoing comparison between two E34 540ia's

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  #3  
Old 08-14-2014, 10:50 AM
WeedSmokinFool WeedSmokinFool is offline
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Will getting the oil changed get rid of the tick

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  #4  
Old 08-14-2014, 11:21 AM
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To an extent, potentially. But I've had my M60 tick due to heavy oil, old oil, low oil. So assuming you know the level is right, no time to waste. Get it changed anyhow if you say it's aged and due for it. I can tell you one thing for certain, no one thing has ever been gained, in my experiences, from putting off an oil change. Running it anything beyond what a 90 year old granny would do, with coke bottle bottom quad focal glasses and a lack of memory for where she's goin, would be ill-advised. See your vehicle manual for the advised weight of oil for your current outdoor temp range and git-r-dun.
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1995 E34 540ia
155,000 Miles
VIN# ...GF32404
Hellrot Red

Fuelly

My Basic Repair History (Edited 4/7/2014)

Ongoing comparison between two E34 540ia's

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  #5  
Old 08-14-2014, 11:25 AM
WeedSmokinFool WeedSmokinFool is offline
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Mein Auto: 1992 BMW 525i
Out of curiosity , what weight do you run. By the way mine didn't come with the owners manual. The guy who sold it to me is a complete asshole's and try to sell me extra stuff that already came with the car

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  #6  
Old 08-14-2014, 11:39 AM
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Mein Auto: 1992 BMW 535i (manual)
Is it a 525i?

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  #7  
Old 08-14-2014, 12:17 PM
DrCharles DrCharles is offline
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Originally Posted by Dionte View Post
Is it a 525i?
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Good point. Note that the M50 (525i) calls for a heavier oil than you may expect - 20W-50 in summer temps. Some forum-searching will show you that 5W-30 or 10W-30 can often result in ticking lifters.
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  #8  
Old 08-14-2014, 12:18 PM
WeedSmokinFool WeedSmokinFool is offline
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Yes it is

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  #9  
Old 08-14-2014, 02:07 PM
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I currently have 10w-40 in mine. Which has all but killed my ticking. When mine starts, it may tick HARD for about 1-2 seconds, then it clears right up. I ran 60w in it for a short while, and I had to wait 5 solid minutes before it would quiet down and I could drive it. It's always a balance, hot viscosity for lubrication vs. engine drag. Also worth noting, that 60w made it so slow in throttle response, both up and down. Normally I run 20w 50 in it if not straight 50w for summer. So far it has been doing great with this 10w 40, and my mpg is climbing at about .5mpg per full tank. Not to mention, it is not loosing any of it, nor am I chased by clouds leaving a stop light.
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1995 E34 540ia
155,000 Miles
VIN# ...GF32404
Hellrot Red

Fuelly

My Basic Repair History (Edited 4/7/2014)

Ongoing comparison between two E34 540ia's

OBC4 Hidden Functions : Link 1, Link 2
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