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BMW/5w-30, 7629, 130k #4467498
07/22/17 09:05 PM
07/22/17 09:05 PM
Joined: Jul 2017
Posts: 7
NEW JERSEY
JayBB Offline OP
JayBB  Offline OP
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/i have started to get a high lead reading. Also my car has a 'noise around 1600-1800 rpm. I wasn't sure if it was coming from the engine so I would hold the brake and rev the engine and I still hear this noise. Its a very light ticking. Should I be worried about bearings?


Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4467624
07/23/17 12:02 AM
07/23/17 12:02 AM
Joined: Oct 2007
Posts: 1,685
Auburn, GA
KenO Offline
KenO  Offline
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Posts: 1,685
Auburn, GA
I'd say yes. What car, what engine? Hows it driven? We don't have nearly enough info.


1995 Volvo 960 ShagginWagon
1995 BMW 328ti
1997 Chevy C2500 5.7l V8
2003 BMW 530i (deceased :()
1998 Mercedes E300 Turbogreasel

Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4467650
07/23/17 02:31 AM
07/23/17 02:31 AM
Joined: Sep 2015
Posts: 2,260
Malaysia
zeng Offline
zeng  Offline
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Posts: 2,260
Malaysia
Nothing to worry about.
Bearings are normal.
Oil is serviceable.

Re: BMW/5w-30, 7629, 130k [Re: KenO] #4467684
07/23/17 05:53 AM
07/23/17 05:53 AM
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JayBB Offline OP
JayBB  Offline OP
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Bmw, 3.0 m54... How is it driven? Feet on the floor... Not sure what you are asking. I drive to work, pick up groceries, etc..

Re: BMW/5w-30, 7629, 130k [Re: zeng] #4467685
07/23/17 05:53 AM
07/23/17 05:53 AM
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JayBB Offline OP
JayBB  Offline OP
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Originally Posted By: zeng
Nothing to worry about.
Bearings are normal.
Oil is serviceable.
care to elaborate

Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4467840
07/23/17 09:49 AM
07/23/17 09:49 AM
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,984
Cincinnati, OH, USA
What 5W30? What does the engine call for in the manual? What year is the car? What was Blackstone's (or whoever did the analysis's) recommendation? Silicon is a little high, any chance of a leaky (or K&N) air filtration problem?


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4467854
07/23/17 10:06 AM
07/23/17 10:06 AM
Joined: Jun 2016
Posts: 3,001
MN
oil_film_movies Online content
oil_film_movies  Online Content
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Posts: 3,001
MN
Originally Posted By: JayBB
/i have started to get a high lead reading. Also my car has a 'noise around 1600-1800 rpm. I wasn't sure if it was coming from the engine so I would hold the brake and rev the engine and I still hear this noise. Its a very light ticking. Should I be worried about bearings?


One point: Your kv100 viscosity is 12.01, and its still a 30-weight as long as its in the range of 9.3 to 12.5, so I'm not sure why Blackstone flagged it.

Another point: BMW's are famous for light ticking. Google BMW lifter tick. Its probably just the HVA, hydraulic valve adjusters (lifters).
Your lead is only a little high, may be nothing. If a bearing was going, it should be more noticeable, yet that could be the problem, from what limited info I have on your situation. Most likely lifter tick.

Since you say the noise is only around 1700 rpm, maybe its not lifter tick. You don't hear anything around idle?

Re: BMW/5w-30, 7629, 130k [Re: bullwinkle] #4468183
07/23/17 04:50 PM
07/23/17 04:50 PM
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JayBB Offline OP
JayBB  Offline OP
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Originally Posted By: bullwinkle
What 5W30? What does the engine call for in the manual? What year is the car? What was Blackstone's (or whoever did the analysis's) recommendation? Silicon is a little high, any chance of a leaky (or K&N) air filtration problem?


bmw oil 5w/30, 2005...have not looked into silicon yet, just changed air filter 2 or so months ago, could have ingested some dirt while changing.

Last edited by JayBB; 07/23/17 04:51 PM.
Re: BMW/5w-30, 7629, 130k [Re: oil_film_movies] #4468185
07/23/17 04:53 PM
07/23/17 04:53 PM
Joined: Jul 2017
Posts: 7
NEW JERSEY
JayBB Offline OP
JayBB  Offline OP
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Originally Posted By: oil_film_movies
Originally Posted By: JayBB
/i have started to get a high lead reading. Also my car has a 'noise around 1600-1800 rpm. I wasn't sure if it was coming from the engine so I would hold the brake and rev the engine and I still hear this noise. Its a very light ticking. Should I be worried about bearings?


One point: Your kv100 viscosity is 12.01, and its still a 30-weight as long as its in the range of 9.3 to 12.5, so I'm not sure why Blackstone flagged it. Please explain this, how the viscosity could change and why it's even something to talk about..

Another point: BMW's are famous for light ticking. Google BMW lifter tick. Its probably just the HVA, hydraulic valve adjusters (lifters).
Your lead is only a little high, may be nothing. If a bearing was going, it should be more noticeable, yet that could be the problem, from what limited info I have on your situation. Most likely lifter tick.

Since you say the noise is only around 1700 rpm, maybe its not lifter tick. You don't hear anything around idle?
Nothing around idle, specifically around 1700-1800 rpm moving or with my foot on the brake revving the engine.

Last edited by JayBB; 07/23/17 04:54 PM.
Re: BMW/5w-30, 7629, 130k [Re: oil_film_movies] #4468212
07/23/17 05:25 PM
07/23/17 05:25 PM
Joined: Jul 2017
Posts: 7
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JayBB Offline OP
JayBB  Offline OP
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Originally Posted By: oil_film_movies
Originally Posted By: JayBB
/i have started to get a high lead reading. Also my car has a 'noise around 1600-1800 rpm. I wasn't sure if it was coming from the engine so I would hold the brake and rev the engine and I still hear this noise. Its a very light ticking. Should I be worried about bearings?


One point: Your kv100 viscosity is 12.01, and its still a 30-weight as long as its in the range of 9.3 to 12.5, so I'm not sure why Blackstone flagged it.

Another point: BMW's are famous for light ticking. Google BMW lifter tick. Its probably just the HVA, hydraulic valve adjusters (lifters). Don't think it is lifter tick, it seems the tick on these cars are all when the engine is cold at idle. That is not my case.
Your lead is only a little high, may be nothing. If a bearing was going, it should be more noticeable, yet that could be the problem, from what limited info I have on your situation. Most likely lifter tick.

Since you say the noise is only around 1700 rpm, maybe its not lifter tick. You don't hear anything around idle?

Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4468229
07/23/17 05:45 PM
07/23/17 05:45 PM
Joined: Jul 2017
Posts: 7
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JayBB Offline OP
JayBB  Offline OP
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I did find some bmw discussion on another forum about the issue I may have. So long as its not a bearing I am happy. But I still would like to know from the brain trust how you think my engine is doing. Maybe it could be a bearing. But it seems from the discussion that they are just chasing gremlins.

Last edited by JayBB; 07/23/17 05:46 PM.
Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4468694
07/24/17 08:17 AM
07/24/17 08:17 AM
Joined: Feb 2013
Posts: 3,117
Virginia
bigt61 Offline
bigt61  Offline
Joined: Feb 2013
Posts: 3,117
Virginia
Bearing noise is usually a knock down low rather than a tick. It also is normally not specific to a certain rpm. Usually you hear it with warm oil at idle (low oil pressure) and the car under slight load in drive. (torque converter drag) Try another oil and see what your lead #'s do. Mobil 1, Castrol Edge or PP should all be fine for a comparison.


92 Suburban 2500 7.4L 58k M1_0w40 5yr OCI
99 Olds Aurora 4.0L 91K M1_5w30 5yr OCI
13 Dodge Dart 2.0L 30k PP 0w20 OLM OCI
70 Camaro 5.7L 59k
Re: BMW/5w-30, 7629, 130k [Re: JayBB] #4468711
07/24/17 08:41 AM
07/24/17 08:41 AM
Joined: Jun 2016
Posts: 3,001
MN
oil_film_movies Online content
oil_film_movies  Online Content
Joined: Jun 2016
Posts: 3,001
MN
Originally Posted By: JayBB
Please explain this, how the viscosity could change and why it's even something to talk about..

Viscosity typically gradually goes down a little (like kv100 drops -2 cSt) the first 5,000 miles or so, and then after that starts to go back up.
Reduction in visc (kv100) is due to the VII (visc improver) molecules actually breaking apart over time and stress and/or some fuel dilution entering the sump from leaky fuel injectors and/or worn rings. An increase in visc is from oxidation (via heat stress and time), and is a sure sign the oil needs to be changed if kv100 gets to say, +2 cst over the new oil's value. ............. You used the high HTHS BMW 5w30, which means 12 cSt kv100 was what it was new, right in the SAE 30 weight range OK, indicating some VII breakdown and oxidation was equally acting to reduce and increase for a net gain of zero.

Note: HTHS is a higher temperature, high bearing speed (shear) viscosity, higher stress than a kv100, which affects oil film thickness the most, something to look up sometime when you're bored and want to read geeky stuff.


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