normal engine temperature
 

I know the thermostat is fully open at 95 degrees C, but what temperature shows via the OBII plug?.

Also, on a day with temperature around 20 degrees C, how many km does it take to get up to normal temp.?

I don't understand your first question. I don't have an answer for your second; five to seven minutes if you're not abusing it.

My FR-S's temp gauge levels out in about 3 miles.


humfrz

So, that's like 20 minutes?

Well, yes, that does include waiting till the granddaughters buckle up, going 20 mph past 2 school zones, opening car door for granddaughters, waiting till they go through the school gate, slowly driving away from the school, passing the two 20 mph school zones again ...... yep, about 20 minutes on a good day (when I can hit all the lights green) ...... ;)


humfrz

But you leave the blinker on just in case, right?

Well, of course ......I will be turning that way ...... sometime ...... :D


humfrz

Notout, we haven't forgotten about you. Get back to us.

Sorry I was vague.
I started by stating the temp at which the thermostat opens fully is 95 because I assume the engine itself may be different. If an analyser is plugged into the OBDII plug a sensor somewhere in the engine sends a signal for temperature... that's what I wanted to know.

For time or distance to operating temp I should have stated on an average sort of day around 20 degrees C and in suburban driving around 60 kmph.

My previous car warmed up in half the time/distance under the above conditions and I wondered whether my '86 is typical.

So, @notout86 how long or how far do you travel before your car's temperature gauge reaches "normal" temperature ... ??

Yes, I have noticed that my FR-S does take longer to "warm up" than our family sedan.


humfrz

No worries. Yes, it takes a while There is no valve for the heater core so even stone cold, it's circulating water. If you have the cabin heat cracked open even a little bit, it will dramatically increase the engine warm-up time.

Hope that helps. :thumbsup:

The OBD will report about 90C when at normal operating temp according to my scan guage. However, my Innovate coolant temp gauge reads quite differently (sensor is plumbed into upper rad hose). It normally will show more around 98C when driving.

Also, the OBD reports temps coming up much more quickly than the Innovate gauge. I have seen the scan gauge show 74C when the Innovate hasn't moved from 49C (It's lowest it will show).

Hope this helps.

normal engine temperature
 

Our car does warm up slower compare to some others 🚗 , I know if you installed the oem style oil cooler sandwich plate from forester xt it will warm up a lot faster. I usually let the car sit for like 5 min before driving.


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Hey Chaos I am confused. How does an oil cooler make the car warm up faster?

normal engine temperature
 

It's magic. 🙈

Love is what makes a Subaru, Subaru. Ok it's time for my meds.

Jks aside that's what people were saying after they installed that... O.o


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I reckon it's time for "those peoples" meds .....:D


humfrz

about 4km

I have read that it is best to drive off right away as it saves fuel and warms up faster.

Yes but don't wank on it because cold oil pressure is through the roof. That means it is limited by the tight clearances at all the journals and cold oil viscosity.

I keep it under 3K until it warms up to full operating temp.

It's not as tight as an F1 engine which will literally seize when cold but it's pretty damn close. This is not your father's Oldsmobile.

The block warms up at closer to the same rate as the cylinders because it is a water-to-oil heat exchanger. Without the mod, the oil temperature lags behind the water temp. Much more during winter temps.

This speaks to my last post. Don't beat on it until the whole engine comes up to normal operating temp, not just the water.

Ahhh I see.

That sounds about "normal" ..... :)


humfrz