Are Turbos Hard on Oil?

[Azimuth]

I'd like to know as well how HPL would do on the GM Turbo or IIIH test. On paper it should do quite well but formulating an oil to be exceptional in all areas is no easy task.

Just look at the testing data on page 4 that I posted (post#80).

Thanks. Do w know if Valvoline Restore and Protect has any effect on turbo deposits?

 

[buster]

Thanks. Do w know if Valvoline Restore and Protect has any effect on turbo deposits?

That I don't know. All oils have their limitations. Valvoline Restore and Protect is only GF-7/SQ so I don't know what else it could technically meet. Based on the wording they say it removes deposits and prevents them from forming. IIIH is high temperature so I'm going to say it should be good but this is a different oil than oils in the past so how it behaves in a turbo/high heat environment is unknown. This oil seems to have something unique that dissolves carbon. As stated in the LSJ video, historically they solved deposit formation through esters to mitigate them, but they still can form. Valvoline Restore and Protect removes and brings it back to OE.

 

[GW.]

That I don't know. All oils have their limitations. Valvoline Restore and Protect is only GF-7/SQ so I don't know what else it could technically meet. Based on the wording they say it removes deposits and prevents them from forming. IIIH is high temperature so I'm going to say it should be good but this is a different oil than oils in the past so how it behaves in a turbo/high heat environment is unknown. This oil seems to have something unique that dissolves carbon. As stated in the LSJ video, historically they solved deposit formation through esters to mitigate them, but they still can form. Valvoline Restore and Protect removes and brings it back to OE.

Yes. At what point is a cleaning additive now long effective vs a high solvency, high quality base oil???? I’d really like to know.

 

[cryptolyme]

If oil is good, it is not an issue:

View attachment 294727

wish all cars came with oil temp sensors.

 

[kschachn]

wish all cars came with oil temp sensors.

My Tiguan is my first and curiously it is the default display on the screen.

 

[tired]

wish all cars came with oil temp sensors.

Agree. I just have a coolant temp sensor, and it doesn't have numbers. I've thought about seeing if I could pull it from the OBD sensor, but I have an oil cooler, and oil isn't usually the rate limiting component of my vehicle's life, so I have resisted the OCD temptation, so far.

Edit: just dug into a little bit. My engine doesn't even have an engine oil temp sensor.

 

[cryptolyme]

Agree. I just have a coolant temp sensor, and it doesn't have numbers. I've thought about seeing if I could pull it from the OBD sensor, but I have an oil cooler, and oil isn't usually the rate limiting component of my vehicle's life, so I have resisted the OCD temptation, so far.

Edit: just dug into a little bit. My engine doesn't even have an engine oil temp sensor.

I can see coolant temps via OBD but who knows how close the oil temp is to the coolant temps. if i only knew someone with a Honda 1.5T that has an oil temp sensor...

 

[tcp71]

Porsche does it right. Water Temp, Oil Temp, Oil pressure and turbo pressure in one display.

 

[Patman]

My Corvette is similar to that

 

[tired]

My Corvette is similar to thatView attachment 297802

Freedom units in Canada?? No metric??

Subaru and Jeep also seem to have nice metrics.

 

[Patman]

Freedom units in Canada?? No metric??

Subaru and Jeep also seem to have nice metrics.

I can switch the display back and forth between metric and imperial and I often leave it on imperial. I grew up learning both, and in my job giving walking tours I always give the stats in both metric and imperial to my guests, as I usually have a mix of American and European guests

 

[tired]

I can switch the display back and forth between metric and imperial and I often leave it on imperial. I grew up learning both, and in my job giving walking tours I always give the stats in both metric and imperial to my guests, as I usually have a mix of American and European guests

I’m envious you are facile with both. I always develop some limited fluency with metric units when I go to Europe, for it all to nearly disappear once I leave.

 

[Blagoje]

wish all cars came with oil temp sensors.

Most, if not all, Subarus do nowadays. My normal displayed oil temp is between 200-210 F under normal driving conditions but if I get above 2000 RPM the boost really kicks in and pushes it at or above 212 F in a matter of seconds.

 

[cryptolyme]

Most, if not all, Subarus do nowadays. My normal displayed oil temp is between 200-210 F under normal driving conditions but if I get above 2000 RPM the boost really kicks in and pushes it at or above 212 F in a matter of seconds.

guess i'm used to my high-revving Hondas. If i stay light on the pedal, i don 't go into boost at all, even at high RPMs.

 

[buster]

"The ultimate thermal test for motor oil, however, comes from turbochargers, where the lubricated center shaft regularly exceeds 1,000°F during use. The primary culprit here is oxidation, which causes the formation of coking and varnish."

“The real workhorse additives, outside of anti-wear agents, are the detergents and dispersants,” Groom says. “It’s the right combination of those that keeps the engine clean and running properly. You also need corrosion inhibitors, because oil by itself doesn’t provide corrosion resistance – that has to be built in.”

https://www.enginebuildermag.com/20...s-inside-viscosity-base-stocks-and-additives/

 

[Wireman1987]

Along with reduced oil change intervals I’d never go over 5,000 on any turbo vehicle.

 

[OVERKILL]

Along with reduced oil change intervals I’d never go over 5,000 on any turbo vehicle.

So you wouldn't differentiate between a turbo vehicle driven 100% highway vs one driven 100% in town? Because the number of engine hours accrued to get you to 5,000 miles would be markedly different here.

 

[Wireman1987]

So you wouldn't differentiate between a turbo vehicle driven 100% highway vs one driven 100% in town? Because the number of engine hours accrued to get you to 5,000 miles would be markedly different here.

5k-6 month is a good window

 

[OVERKILL]

5k-6 month is a good window

This is why iOLM's were invented BTW because mileage based intervals don't account for different driving styles and operating conditions, while things like engine hours tend to be a more accurate proxy for actual degradation.

 

[Wireman1987]

This is why iOLM's were invented BTW because mileage based intervals don't account for different driving styles and operating conditions, while things like engine hours tend to be a more accurate proxy for actual degradation.

Wife’s Nissan rogue turbo has a pre set maintenance minder to tick off at 10k… for oil changes. I use the adjustable one that’s configurable in either 250 or 500 mile increments I forget which but I just set that to 5k. I don’t need an algorithm to save me a few dollars on oil and a filter. Engines cost 1,000s