@SuperV8
So did a 71 mile round trip of mostly motorway on this sunny Saturday.
Managed to squeeze just over 40mpg - Cant say im impressed considering the type of journey...
Start of trip:
Coolant temp | Oil Temp | Actual Coolant temp at radiator | Specified Coolant Temp at radiator |
13c | 13.5c | 13.8c` | 105c |
End of trip:
Coolant temp | Oil Temp | Actual Coolant temp at radiator | Specified Coolant Temp at radiator |
101c | 96.5c | 41.7c | 102.7c |
Logs from this journey:
log.tunezilla.com
Radiator temp peaked at 51c
View attachment 47772
Fan operation vs coolant temp
I found it strange that your coolant temp keeps dropping down below 90 - maybe down to 86-87.
But then checking SSP555 about the 1.5evo and using google translate; it says this:
vd Veer engineering car electronics. Haldex, DSG, CAN controller and other CANBUS devices.
www.haldexcontroller.com
"Phase 04 Coolant temperature regulation to 85–105 °C
After the engine has warmed up, the coolant temperature regulation begins, depending on the operating mode.
This regulation is carried out exclusively via rotary flap 1. Rotary flap 2 is fully open and remains in this position. The coolant temperature is maintained at 105 °C at low load and speed, and is reduced to 85 °C at high load and speed.
Regulation is carried out steplessly according to programmed parameters"
So this is probably working as designed - though we don't know what they class as 'high speed'? - would have been interesting to add your speed/load on to this graph - to see if these coolant temp dips correlate to your increased speed/load?
Your coolant gets upto temp in around 6 minutes and oil in about 17 minutes - seems 'reasonable' to me but be nice if someone else with a 1.5 could comment if this seems reasonable?
I don't understand why your actual and specified temp at radiator are so different?
The fan can also come on with AC demand - so not sure this is anything to be concerned about - unless it was coming on at 70mph?