Coolant Temp Help

[NewCivicRs]

Hello fellow friends,
Could you please advice regarding on ECT 2 increases gradually above 90 Celcius to 95, 96 and to 100 C and peak 102 C then drops sooner below 95 C and repeat the cycles as I kick down high boost on canyon uphill road.

Should I switch to 5W30 or stick to the Amsoil SS 0W20 or alter fan activation earlier on ktuner?

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[ModJPB]

Are you asking because you're concerned something is wrong or you want to upgrade for better performance?

 

[Cueyo]

Those temp fluctuations seem pretty normal, the thermostat opens and the temp goes down.

 

[NewCivicRs]

Those temp fluctuations seem pretty normal, the thermostat opens and the temp goes down.

Do you recommend to switch to 5W30 or this is still fine with 0W20?

 

[Cueyo]

Do you recommend to switch to 5W30 or this is still fine with 0W20?

An oil weight change wont necessarily change your ect. You want your coolant to increase and decrease in temp since it means it's removing heat.

You should know what's normal by just driving normally and looking at your temps. Regardless 102C isn't outside the ordinary.

 

[AZCWTypeR]

I recommend 5W-30 over 0W-20. It's okay per Honda UK owners manual too. 5W-30 provides a thicker oil film, without noticeable fuel economy changes. Or 0W-30 if you are often driving in sub-freezing weather.

I live in Southern AZ. I think my car got down to 35F one morning outside in Sedona, otherwise not below 50F in my garage. I use 5W-30 with no issues.

BTW many oils use synthetic base refined in Saudi Arabia, so don't get surprised by the recent price increases.

 

[NewCivicRs]

Are you asking because you're concerned something is wrong or you want to upgrade for better performance?

I am asking if it is dangerous or not healthy for long term use in this case. Everything is fine. Actually I know it because I keep monitoring the ktuner V2, if I dont, I just drive it away as I wanted and everything feels normal. I just fear of suddenly blow it up. Either the CVT temp that reaches 115 C or engine scoring because high boost pull.

Should I switch to thicker oil or stick to the 0W20?

 

[NewCivicRs]

An oil weight change wont necessarily change your ect. You want your coolant to increase and decrease in temp since it means it's removing heat.

You should know what's normal by just driving normally and looking at your temps. Regardless 102C isn't outside the ordinary.

Just stick to the 0W20?

 

[NewCivicRs]

I recommend 5W-30 over 0W-20. It's okay per Honda UK owners manual too. 5W-30 provides a thicker oil film, without noticeable fuel economy changes. Or 0W-30 if you are often driving in sub-freezing weather.

I live in Southern AZ. I think my car got down to 35F one morning outside in Sedona, otherwise not below 50F in my garage. I use 5W-30 with no issues.

BTW many oils use synthetic base refined in Saudi Arabia, so don't get surprised by the recent price increases.

I see, but have you tried the 0W20 and any difference? Yours Type R right?

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