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MG MGF Technical - What is fair about oil temp?
|What is fair about oil temp?|
Crossing at about 130k/h for a few minutes the oil temp reaches 120°C, sometimes a bit more. Is that normal or too hot?
|i don’t know if there is any particular figure for it, as each car /oil/guage is different but i would have thought from what i have read on here that around 90°c would be more ‘usual’|
|... for 60-70mph in british weather.|
|Mine's running hotter 100-120'ish, but it could be the oil wants changing, due in a couple of months.|
|I would be interested in any informed comments concerning normal operating oil temperatures - being somewhat sensitive following an HGF in my then two-year old F.|
I now have a one year old TF and once "warmed up" the oil temp. is always just under the 120c - regardless of whether hard driving or steady 70mph motorway driving. That's higher than I've seen mentioned on other threads. Is that a worrying level - it's never any different?
Do I get the impression that a steady temperature reading that isn't wildly high is better than a fluctuating reading? Are the gauges not overly reliable anyway?
Thanks in advance
|mine just seems to rise to about about 75°c and stay roughly there whatever the speed or weather...|
|Still not informed, I know.., |
but mine has never had coolant problems, is serviced regularly, and hits 110C every day when I do a blast on the motorway.
I have seen 120 on more hot or heavier driving days..
.. I reckon 120's gotta be okay..
.. do look after your oil changes though.. they are important on the K's.
|Hi. I own an MG Tf 135, and is just when the oil temp reach near 120ºC when I start to run really fast. In our warm (sometimes hot) wheater 120 is ok.|
|Mine heats up to 110C on normal highway use. On hot days OR long fast runs 120C. On hot days AND long fast runs 122-124C|
|Thanks to this fourm I fitted the resistor the value of which has escaped me for the moment. Without this I could see 150 at times. Now fitted the guage sits at 120-125 degrees at motorway speeds and will reach 120 after a reasonable ordinary drive.|
The other thing is that generally people say not to exceed 3000 rpm until you see 90 degrees on the guage. With such a wide range of temperatures being disclosed it would make you wonder how accurate are the damn things. I almost all of the time adhere to this rule especially after HGF.
|Lot of responses here...... well mine sits below 100 mostly, unless i'm REALLY caning it on the motorway...... and then it reaches 120..... but drops about 5 minutes after returning to a steady 70mph in 5th back to 90ish. |
|Thanks for the responses to my posting.|
I guess my main query is that in the light of the varying "normal" readings we all experience as reported on this and on other threads on this subject - can the oil temperature gauge provide a trusted reading? Is it a reliable indication that the engine is operating normally and efficiently or that something is about to go wrong?
After all what some would see as an unsually high temperature - say 120c - would appear to be a normal operating temperature both by myself and others here.
|Another question I'd like to know the answer to is why do we have an oil temp gauge instead of an oil pressure gauge?|
I think the oil temp gauge is only useful in relation to itself - so if your car has no appearent cooling problems for a long time, the particular behaviour of your temp gauge is normal. Keep an eye on it to see if starts acting differently - only then something might be wrong...
Comparing to others is no use, since some run normal on 75C and others on 120C. I do wonder about the postings stating that the oil-temperature changes significantly after an oil-change. This suggests a different kind of oil causes the temp to drop/rise 20C! Comments on this anyone? If this is true, it might help prevent HGF?
This thread was discussed between 02/06/2003 and 05/06/2003
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