Author Topic: Not ANOTHER oil temp question??!?  (Read 813 times)

Offline cняis

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Not ANOTHER oil temp question??!?
« on: 28 April 2007, 15:12 »
Now your gunna tell me to search the forums... which i have... but i was just wondering...

- Today it was 21 degrees outside, with a cool breeze

- Oil and coolant level at max

- I was driving up the M5 at a steady (speedo indicated) 80mph

- Coolant temp is normal

- Oil temp gets up to 102/104! (then the engine starts pinking due to carbon deposits in the head)

- Cruise at 65/70 and temp drops down to 96/98 (what i'd consider to be normal, plus the car does not pink at this temp)

Is this normal? Is a prolonged drive with the oil temp at 104 going to damage the car?  :shocked:


I don't think a semi will give the same results

Offline rowlers

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Re: Not ANOTHER oil temp question??!?
« Reply #1 on: 28 April 2007, 15:49 »
oil temp is completely normally worry when it gets up to 140ish!

As for the pinking, its usually ignition timing related - i think!

What car btw??

Offline Neaty

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Re: Not ANOTHER oil temp question??!?
« Reply #2 on: 28 April 2007, 16:00 »
on a mark 2 8v, the oil temp was always between 98-104 when on the motorway when I had mine

Offline cняis

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Re: Not ANOTHER oil temp question??!?
« Reply #3 on: 28 April 2007, 19:01 »
sorry its a mk2 8v digi. i appreciate pinking is usually timing related, but timing/CO was sorted as per rubjonny's guide last week. my garage advised me of lots of carbon deposits in the head, but pinking has mostly gone after a cheap decoke (http://www.clubgti.com/forum/forum_posts.asp?TID=13991&PN=5). as i say, its only when it gets 100 degrees plus that it pinks again...

another poor man's decoke i think... :cool:

anyway, 104 degrees is fine then :) all i wanted to know.



I don't think a semi will give the same results

Offline Neaty

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Re: Not ANOTHER oil temp question??!?
« Reply #4 on: 28 April 2007, 19:03 »
when was the oil last changed, maybe its getting a bit hotter coz its too thin?

try putting in some 15w 40 next time you come to do an oil change

Offline cняis

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Re: Not ANOTHER oil temp question??!?
« Reply #5 on: 28 April 2007, 19:14 »
oil was changed about 1500 -2000 miles ago, its fully synth 10w40, plus its a high miler engine at 220k.

so you'd recommend a thicker oil? fully or semi synth?


I don't think a semi will give the same results

Offline Neaty

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Re: Not ANOTHER oil temp question??!?
« Reply #6 on: 28 April 2007, 19:39 »
I would try and find some thicker oil, do they do 15w 50? i think halfords do it in like a green metal container.