Engine Temp On A Hot Day ?

[TokyoTaxi]

Yesterday I was driving home with the A/C on and noticed the temp was slightly up. Normally the gauge needle is in the middle ( flat ) or just below but yesterday it was about 3mm above the middle. I'm not getting too concerned just yet but was just wondering how other RB25DE NEO owners run temp wise on a hot day ?? Especially those of you up in QLD or WA who cop big temps.

Feedback please.

[G0DZLR]

how hot was it up there yesterday?

[TokyoTaxi]

I think it was around the low 30's mark.

Also, noticed that lately the thermo fan has been on even at normalish operating temps

I thought it was only supposed to come on if the A/C was on or if the engine temp got too hot, but not at normalish operating temps.

[DaGr81]

By engine temp and the gauge you mean water temp, have you checked your coolant recently to see if it's full, look at the overflow as well, also if you haven't flushed your radiator recently give it a go, mines always in the middle and never see's anymore than 80 degrees according to aftermarket gauge I found out the hard way once it was rising but when your cruising it goes back to normal, then when you leave it to idle it rises, I checked 2 things .. Leak in radiator and water pump turned out to be hole in radiator about 70 bucks to repair

But I've got aftermarket radiator so yeah temps can drop to 70 while cruising

[Vik]

My one stays just around the 80 mark.. like said. check for leaks.. and add some a grade coolant.

Then you should be fine.

but that sort of spike in water temp seems weird.

MRXTCZ

[TokyoTaxi]

Can't find any leaks, heaps of A grade coolant etc. Today was around the same temp but the engine temp didn't go up so........

Here's where the temp normally is and the red line is where it went up to.

Maybe a sticking thermostat. Will have to monitor I guess.

[DaGr81]

Yeah just monitor, could have been engine oil temp you never know because when oil temp goes up so does water temp it's all relative