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20w-60 oil bad for my i6! 

 

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 Post subject: 20w-60 oil bad for my i6!
Posted: Thu Dec 23, 2004 4:28 pm 
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My car knocks and carries on when it's been idiling for a while coz she's done 277,000km.

I went to a respected auto parts supplier and told him the prob and he suggested using 20w-60 oil because being thicker it would help quiet the knocks from the bottom end.

I asked a mechanic and he confirmed the suggestion so I put the 20-60 oil in and immediately the tappets/lifters started making noises.

I drove it for 2 days with the thick oil and got so sick of the tapping noises.
It didnt just make these noises at startup.
When ever the motor was lower than 1100rpm it was tapping even after a drive.

Changed back to 20w-50 and the tapping has decreased noticeably but is still there.

Have I done permanent damage? Is there anyway to stop the painful noise of the lifter/tappets?

 

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Posted: Thu Dec 23, 2004 7:07 pm 
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try some good quality engine flush it should help to clean it up a bit, as for whether its done permanent damage don know

 

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Posted: Thu Dec 23, 2004 7:49 pm 
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Rebuild time......

Dang.
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Posted: Thu Dec 23, 2004 7:53 pm 
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Yeah dude did ya use Penrite HPR Oils cause if ya didn't that would explain it. If ya did use a Penrite one then go back to HPR 15 and it should help.

 

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Posted: Thu Dec 23, 2004 8:05 pm 
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msman wrote:
try some good quality engine flush it should help to clean it up a bit, as for whether its done permanent damage don know




don't use engine flush on an engine that old. it will dislodge all the crap and block up filters, the strainer on the oil pick up, the filter in the chain tensioner, block up the valve lash adjusters.

also there is no such thing as good quality engine flush, it's only kerosine

 

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Posted: Thu Dec 23, 2004 11:37 pm 
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Get yourself an ACL ovwerhaul kit...
Around $600.

 

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Posted: Thu Dec 23, 2004 11:54 pm 
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tickford_6 wrote:
msman wrote:
try some good quality engine flush it should help to clean it up a bit, as for whether its done permanent damage don know




don't use engine flush on an engine that old. it will dislodge all the crap and block up filters, the strainer on the oil pick up, the filter in the chain tensioner, block up the valve lash adjusters.

also there is no such thing as good quality engine flush, it's only kerosine


I think a lot of ford service centers use the engine flush when you take them in for basic service.

ghiaman
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Posted: Fri Dec 24, 2004 12:00 am 
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ghiaman wrote:
tickford_6 wrote:
msman wrote:
try some good quality engine flush it should help to clean it up a bit, as for whether its done permanent damage don know




don't use engine flush on an engine that old. it will dislodge all the crap and block up filters, the strainer on the oil pick up, the filter in the chain tensioner, block up the valve lash adjusters.

also there is no such thing as good quality engine flush, it's only kerosine


I think a lot of ford service centers use the engine flush when you take them in for basic service.

ghiaman




i dont care if they use it or not. i just won't ever use it or will i tell any one else to use it.
there is nothing good about it at all.
my advice use quality oil of the right viscosity and you should never need to put engine flush in there.

and to every one that uses it. your a fool for it. you are damaging your engine every time you put it in.

 

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Posted: Fri Dec 24, 2004 8:39 am 
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My mechanic tells me exactly the same thing.

 

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Posted: Fri Dec 24, 2004 5:24 pm 
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4.9 EF Futura wrote:
My mechanic tells me exactly the same thing.


your mechanic is a smart man

 

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Posted: Fri Dec 24, 2004 7:08 pm 
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I always use Penrite HPR 20w - 60 oil in my car and never had a problem with the engine, but i live in central Qld where the weather is always Hot and most of my driving is highway.

 

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Posted: Fri Dec 24, 2004 7:28 pm 
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On my VCT mtr in the AU with 81,000ks it has 5w-30w oil only on the cap. I only have been using fully synthetic oils Shell ultra at first. I'am using fully synthetic Penrite 5w-50w now days.

The only time I've ever used a engine flush was on a relatives EA who never looks after any car and had never changed the oil for 5 years only top ups . One thing with a flush is you only idle the car for 5 min not drive them. But yep i got to agree if you use good oil and change the filter there is no need to use engine flush.

ghiaman
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