[320IN54]

I recently changed my oil and I have been notice a big difference in oil temp. I switched from Mobil 1 5w-30 to Liqui Moly 0w-40 that I got from FCPEuro. My oil temp is now around 210-220 F versus the regular 240-250 F. I know Liqui Moly is some good stuff and by switching to a 40 weight oil, it means that at operating temp the oil wont run thin. Can I get some insight to this because i am curious as to why this is happening.

[335e92tx]

I cant see how a specific blend will drop 30degrees. In the 10 yrs Iv had n54s in tx I might have seen a 5 degree variation in oil temps depending on blend. Mobil1 and Castrol Extreme tend to be about 5 degrees less than pz or valv. Now, having said all that, I would not recommend zero anything. I Guess you are way up north and I could see needing that for winter but the prob is when they go to zero weight, the base-stock is a different blend they generally dont hold up as well as the miles increase. The viscosity improvers dont make it to even 7500 miles without some change (shearing) in the molecule chains., and that increases wear, especially at startup.

Best mod for reducing oil temps, mhd waterpump setting to sport.

[320IN54]

Originally Posted by 335e92tx

I cant see how a specific blend will drop 30degrees. In the 10 yrs Iv had n54s in tx I might have seen a 5 degree variation in oil temps depending on blend. Mobil1 and Castrol Extreme tend to be about 5 degrees less than pz or valv. Now, having said all that, I would not recommend zero anything. I Guess you are way up north and I could see needing that for winter but the prob is when they go to zero weight, the base-stock is a different blend they generally dont hold up as well as the miles increase. The viscosity improvers dont make it to even 7500 miles without some change (shearing) in the molecule chains., and that increases wear, especially at startup.

Best mod for reducing oil temps, mhd waterpump setting to sport.

I actually live in the valley of California. I wanted to try 0w-40 because the temperature difference in the summer and winter here is pretty insane. In response to my oil temps, I guess I havent been driving my car hard enough to actually see what the temps are. If I am wrong, one thing I am sure of though is that my oil temps definitely rise slower than before.

[Jeff@TopGearSolutions]

Well theoretically thicker oil takes longer to warm up. It's one reason I run 40W myself.

There are a lot of things that go into the temperatures these cars run.

For example, on a cold start with air conditioning on, my oil temps stay significantly lower then if I drive the car with air conditioning off. I'm talking about regular average Joe driving for say 15-20 min, mostly highway.

[MysticRob]

I suppose the reduced friction of a great oil can lead to cooler temps over a not-so good oil, but from what I've read the viscosity ratings have less to do with how an engine performs than the quality and additives in any specific oil.

While I haven't looked at operating-temp differences when I switched to Motul 8100 X-cess 5W-40, I noticed the car takes longer to ramp up the oil temp and it idles and runs much smoother than whatever the hell was in it when I bought it. Other than the engine noise I can't tell it's running sometimes, and that's with almost 136k miles on it.

[fmoua916]

My BMW takes 10-15 of driving to warm up when my civic warms up in 3-5 mins

[Jklad]

Originally Posted by fmoua916

My BMW takes 10-15 of driving to warm up when my civic warms up in 3-5 mins

What oil temp are you referring to as "warmed up" in each car?

[jwebb335xi]

Originally Posted by GotPwned

I recently changed my oil and I have been notice a big difference in oil temp. I switched from Mobil 1 5w-30 to Liqui Moly 0w-40 that I got from FCPEuro. My oil temp is now around 210-220 F versus the regular 240-250 F. I know Liqui Moly is some good stuff and by switching to a 40 weight oil, it means that at operating temp the oil wont run thin. Can I get some insight to this because i am curious as to why this is happening.

I have read that some folks believe good xW40 will tend to run a bit cooler that xW30. In my limited experience with different oils, Motul x-cess 5w40 and Redline 5w30 both run about the same in my car with my mods in Chicago (i.e., typically just under 240) in summer whereas other oils have tended to cross 240 but not by much. I can only recall 1 time over 250 and that was in very long stop and go after running car hard in heat about 98* with high humidity..

With AC on, it may stay closer to 230 because the fan is on...

Originally Posted by fmoua916

My BMW takes 10-15 of driving to warm up when my civic warms up in 3-5 mins

Originally Posted by Jklad

What oil temp are you referring to as "warmed up" in each car?

More important question being: how exactly are you measuring oil temperatures in a Civic to begin with?

[Jeff@TopGearSolutions]

Originally Posted by fmoua916

My BMW takes 10-15 of driving to warm up when my civic warms up in 3-5 mins

That doesn't sound right with regards to civic, oil always takes longer to warm up then water. You are probably referring to water with the civic. They don't have oil temperatures gauges.

Originally Posted by FCobra94

More important question being: how exactly are you measuring oil temperatures in a Civic to begin with?

+1

[Antoans4]

Best mod for reducing oil temps, mhd waterpump setting to sport.[/QUOTE]

Would this make the water pump to work more? Would make it wear out quicker?

Originally Posted by Antoans4

Would this make the water pump to work more? Would make it wear out quicker?

You're in Miami...your WP is getting a workout no matter what.

[puppydax]

Originally Posted by fmoua916

My BMW takes 10-15 of driving to warm up when my civic warms up in 3-5 mins

What? I think you're looking at your water temp in your civic gauge. Our BMW's don't have water temp, just oil. Oil takes longer than water to reach operating temp. Deutschtechnik.

[335e92tx]

Id rather work the WP more, which if anything is almost a service item now than beat the gaskets bc of higher temps. Not to mention the oil temp is further from limp trigger.

I did some monitoring of oil and coolant temps on the old n54. As oil is in the 170 range coolant temps are just approaching 205 (which was peak on old pre WP sport MHD). Then oil temps would continue to rise over the next 15 mins to finally peak around 235 in my normal drive. Now oil temps run at least 15 degrees cooler. I have yet to check coolant temps on the new IS.

Will do that shortly.

[feuer]

For proper compassion I would stick to either:
1-same brand oil but different grade
2-different brand oil with same grade
Mobil 1 5w-30 to Liqui Moly 0w-40 is like comparing Michelin treadwear 300 with Dunlop treadwear 400

[alpineweissm]

After recently switching from the factory BMW 5w30 to Redline 5w40, there is a noticeable reduction in oil temp. I don't have exact numbers, but it's about 3 bars lower on the gauge once fully warmed up. I define fully warm by my 30+ minute of stop and go commute in 106*F Sacramento heat with the AC on.

[320IN54]

Originally Posted by feuer

For proper compassion I would stick to either:
1-same brand oil but different grade
2-different brand oil with same grade
Mobil 1 5w-30 to Liqui Moly 0w-40 is like comparing Michelin treadwear 300 with Dunlop treadwear 400

It was more of an observation and a curiosity as to how this can be possible than a comparison to the two oils but I do understand that if you want to compare two different brands it should be the same grade

[fmoua916]

Originally Posted by puppydax

What? I think you're looking at your water temp in your civic gauge. Our BMW's don't have water temp, just oil. Oil takes longer than water to reach operating temp. Deutschtechnik.

Yeah just realized that bha

[Antoans4]

Originally Posted by 335e92tx

I cant see how a specific blend will drop 30degrees. In the 10 yrs Iv had n54s in tx I might have seen a 5 degree variation in oil temps depending on blend. Mobil1 and Castrol Extreme tend to be about 5 degrees less than pz or valv. Now, having said all that, I would not recommend zero anything. I Guess you are way up north and I could see needing that for winter but the prob is when they go to zero weight, the base-stock is a different blend they generally dont hold up as well as the miles increase. The viscosity improvers dont make it to even 7500 miles without some change (shearing) in the molecule chains., and that increases wear, especially at startup.

Best mod for reducing oil temps, mhd waterpump setting to sport.

Couldn't find that option at MHD

[335e92tx]

Originally Posted by Antoans4

Couldn't find that option at MHD

After you select the transmission but before you select flash, there is an options screen and there you can set WP for stock, sport or race.