Tpyota 86 AT 2013 oil consumption, pls help

[pro_turbo]

My car is NA and bone stock at the moment. Will install eforce after my motec problem is done.
But my oil consumption is pretty high. 1000km for half liter/ 500cc
Is there anyone who got this problem too?
I am using 15w50 motys m110
Should i use 5w30 ?
Please advice.

[Dzmitry]

Originally Posted by pro_turbo

My car is NA and bone stock at the moment. Will install eforce after my motec problem is done.
But my oil consumption is pretty high. 1000km for half liter/ 500cc
Is there anyone who got this problem too?
I am using 15w50 motys m110
Should i use 5w30 ?
Please advice.

Not sure that a thicker oil should create leaks, but the oil you are using is way out of spec of course. May I ask why you chose to use the thickest oil possible? The thickness of your oil at 280F is about equivalent to that of 5w30 at 220F. Is this a track only car?

[86TOYO2k17]

Maybe running too thick oil has caused excessive wear causing greater oil consumption.

Factory spec is 0w-20, unless you think you know something the engineers who designed the engine don’t. I’d suggest sticking to factory recommended oil weight.

[Transport3r]

Originally Posted by 86TOYO2k17

Maybe running too thick oil has caused excessive wear causing greater oil consumption.

Factory spec is 0w-20, unless you think you know something the engineers who designed the engine don’t. I’d suggest sticking to factory recommended oil weight.

Factory spec is 0W-20 in the us, but 5w-30 in some countries. It’s mostly a recommendation for fuel economy, you’ll see significantly higher metal wear with 20 weight oil vs a similar 30 weight. STI recommends 5w-40 for Tracking IIRC.

I wouldn’t run 50 weight in a DD FA20, but I prefer a 0-W30 over a 0W-20.

[86TOYO2k17]

I’ll stick to manufacturers recommended weight

[pro_turbo]

Originally Posted by Dzmitry

Not sure that a thicker oil should create leaks, but the oil you are using is way out of spec of course. May I ask why you chose to use the thickest oil possible? The thickness of your oil at 280F is about equivalent to that of 5w30 at 220F. Is this a track only car?

No its dailly. So what is the best oil for me then ?
5w30 ? Since i will be running force inductions

[pro_turbo]

Originally Posted by 86TOYO2k17

Maybe running too thick oil has caused excessive wear causing greater oil consumption.

Factory spec is 0w-20, unless you think you know something the engineers who designed the engine don’t. I’d suggest sticking to factory recommended oil weight.

Yeah thanks. I will try to move back to spec and will report on this forum again

[pro_turbo]

Originally Posted by Transport3r

Factory spec is 0W-20 in the us, but 5w-30 in some countries. It’s mostly a recommendation for fuel economy, you’ll see significantly higher metal wear with 20 weight oil vs a similar 30 weight. STI recommends 5w-40 for Tracking IIRC.

I wouldn’t run 50 weight in a DD FA20, but I prefer a 0-W30 over a 0W-20.

In here also 0w20 as stock recomend oil.
I will run 5w30 thrm to meet in the middle.
Will 5w30 sufficent for my force induction later

[86TOYO2k17]

Originally Posted by pro_turbo

No its dailly. So what is the best oil for me then ?
5w30 ? Since i will be running force inductions

Oil weight is based on engine tolerances and clearances nothing to do with forced induction.

The only time you should go up a weight is if you have oil overheating problems and then it should be a temporary band aid until you get a proper oil cooling solution. In extreme circumstances no amount of cooling can keep up so you may go up a weight.

The idea heavier weight oil is somehow always inherently better is foolish.
If so then why stop at 5w30? Why not 10w40 or 30w70? What makes 5w30 the magic weight? Heavier is better right, so put some 70w90 in.

But wait so then what makes 0w-20 the magic number you ask?
The engineers who speced, designed, built, and tested the engine determined it to be the ideal weight. So unless you know something an entire team of highly trained, skilled, knowledge expert engineers who built the engine don’t. Why wouldn’t you stick to the recommended weight oil?

Also keep in mind especially for a daily most engine wear happens at initial cold startup, where 0w-20 is far superior.

[Dzmitry]

Originally Posted by pro_turbo

No its dailly. So what is the best oil for me then ?
5w30 ? Since i will be running force inductions

While it is your daily, I would certainly recommend sticking to spec, which would be 0w-20 or 5w-30.

The oil you are running is extremely thick and probably doing more damage than good on a daily car as it is still too thick at normal operating temperatures. Once you go forced induction, you can start looking into running thicker oils. From there, it will simply depend on your oil pressure, which I would recommend getting a gauge for.

Now if you consider tracking or doing any intense drive when under forced induction, you may also want to consider an oil cooler, but that will be your choice to make. As oil temperatures begin to rise higher than usual (above 230F about), at the minimum you should change your oil to a higher oil weight like 5w-30/40, etc. But at no point should you really ever need 15w-50. It's just not designed for this engine, and if you truly need it to upkeep with temperatures, then you probably should be getting an oil cooler instead.

EDIT: One thing I'd like to add is, get back to us on how things are once you move back down to a low weight oil. I am curious if this problem continues now that you have already ran such a high oil weight for some time, but hopefully not of course. Worst case scenario, is you'll have to keep an eye on your oil and topping it off all the time to not create further problems.

[pro_turbo]

Originally Posted by Dzmitry

While it is your daily, I would certainly recommend sticking to spec, which would be 0w-20 or 5w-30.

The oil you are running is extremely thick and probably doing more damage than good on a daily car as it is still too thick at normal operating temperatures. Once you go forced induction, you can start looking into running thicker oils. From there, it will simply depend on your oil pressure, which I would recommend getting a gauge for.

Now if you consider tracking or doing any intense drive when under forced induction, you may also want to consider an oil cooler, but that will be your choice to make. As oil temperatures begin to rise higher than usual (above 230F about), at the minimum you should change your oil to a higher oil weight like 5w-30/40, etc. But at no point should you really ever need 15w-50. It's just not designed for this engine, and if you truly need it to upkeep with temperatures, then you probably should be getting an oil cooler instead.

EDIT: One thing I'd like to add is, get back to us on how things are once you move back down to a low weight oil. I am curious if this problem continues now that you have already ran such a high oil weight for some time, but hopefully not of course. Worst case scenario, is you'll have to keep an eye on your oil and topping it off all the time to not create further problems.

I will change it as soon as possible.
And back to your guys

[86TOYO2k17]

Originally Posted by Dzmitry

I would certainly recommend sticking to spec, which would be 5w-30.

Link to manual showing spec of 5w-30?

[pope]

.

[RToyo86]

Non American user manuals had 5w30 mentioned as an option. I recall the Japanese manual even mentioning something up to the effect of a 5w40 under heavy load conditions (racing)

https://www.ft86club.com/forums/showthread.php?t=105134

Edit: post 3
https://www.ft86club.com/forums/showthread.php?t=131389