Comparing 3 oils for a 2011 WRX

[Virtus_Probi]

There are some XW30 oils that are supposed to be more robust than others.
I am going to give Mobil 1 ESP 5w30 a try for my next change. The good news is that its HTHS is high and its NOACK is low for its weight, the bad news it that I paid almost $13/liter at Pep Boys.
:^O
It can be had for a little less per liter, but not much, in quantity on eBay and Amazon. I think the problem is that this is a Euro-targeted oil that is just not seen in the US very much.

 

[rationull]

Originally Posted By: Virtus_Probi
There are some XW30 oils that are supposed to be more robust than others.
I am going to give Mobil 1 ESP 5w30 a try for my next change. The good news is that its HTHS is high and its NOACK is low for its weight, the bad news it that I paid almost $13/liter at Pep Boys.
:^O
It can be had for a little less per liter, but not much, in quantity on eBay and Amazon. I think the problem is that this is a Euro-targeted oil that is just not seen in the US very much.


Are you planning to do a used oil analysis? I thought about trying ESP as well but availability is too sketchy where I am.

 

[Virtus_Probi]

Originally Posted By: rationull

Are you planning to do a used oil analysis? I thought about trying ESP as well but availability is too sketchy where I am.


I am planning to do a used oil analysis on my present fill of plain ol Mobil 1 5W30 with some MoS2 and then do the same with the ESP with no additives.
That plan will be messed up if my FXT does not do well in its testing in the recall for LSPI and I end up with a new engine!!

 

[rationull]

Originally Posted By: Virtus_Probi
Originally Posted By: rationull

Are you planning to do a used oil analysis? I thought about trying ESP as well but availability is too sketchy where I am.


I am planning to do a used oil analysis on my present fill of plain ol Mobil 1 5W30 with some MoS2 and then do the same with the ESP with no additives.
That plan will be messed up if my FXT does not do well in its testing in the recall for LSPI and I end up with a new engine!!


Ouch, I hadn't heard of that, but now I see you have a thread on it, which I am now going to read. Good luck!

 

[Virtus_Probi]

Originally Posted By: rationull

Ouch, I hadn't heard of that, but now I see you have a thread on it, which I am now going to read. Good luck!


I don't know if getting a new engine would necessarily be all that bad, other than being in a rental for a while.
I do worry about having marginal results and the dealer saying they are good enough to keep the engine. I am definitely asking for numerical results from the leakdown test, will not accept "they passed".

 

[mjoekingz28]

Which turbo, flat ( are all Subarus HO?) cars have the oil cooler?


Is it all turbo cars, cars of a certain date, or just the STI that are oil cooled?


Also, what about intercooling and aftercooling? Can anyone give me a link showing/telling how you cool the hot, compressed air from a turbo or super and have it still force into the throttle body without losing boost? Thanks


Also, do you think force fed engines run hotter oil temperatures? Lets assume the turbo is not cooled with the engine oil- for argument's sake.

 

[rationull]

Originally Posted By: mjoekingz28
Which turbo, flat ( are all Subarus HO?) cars have the oil cooler?


Is it all turbo cars, cars of a certain date, or just the STI that are oil cooled?


Also, what about intercooling and aftercooling? Can anyone give me a link showing/telling how you cool the hot, compressed air from a turbo or super and have it still force into the throttle body without losing boost? Thanks


Also, do you think force fed engines run hotter oil temperatures? Lets assume the turbo is not cooled with the engine oil- for argument's sake.


The STi has an oil cooler (oil filter sandwich variety, not a dedicated radiator), and the WRX before I think 2008. 2008-2014, no oil cooler -- not sure about 2015+. Not sure about Forester XT, Outback XT, or Legacy GT but in general they probably match the same-year WRX more or less.

The intercooler is top-mount and has a very short path from the airbox into the IC and then into the throttle body.