As others have mentioned, you want to address your cooling system first.
I noticed my oil temps were climbing about 20F higher than normal. I started logging/viewing both coolant and oil temps.
To my surprise, coolant temp went up first and oil temp followed until the oil got to temp (205F)...
folks here recommended redline 75w90ns. My installer was recommending redline lightweight shockproof. The redline tech said to not run shockproof in my transmission. A shop owner with an 800hp subaru is running shockproof for his sti transmission.
So...we did a 3:1 redline 75w90 and redline...
I see...from their site about the 5w30.
Recommended for API SN/SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4, GM dexos1® (GM-LL-A-025, GM6094M and GM4718M), BMW LL-01
So, they say the oil is compatibe but it doesnt have certification. Is that what you are saying?
I just swapped in a 2015 sti transmission into my 2015 wrx and get similar notchiness as others have reported.
sometimes it wont go into reverse and I drop it in 2nd then it goes into reverse. Same for 1st gear.
I have motul 300 and will be switching to redline.
Thanks for the suggestions...
Originally Posted By: Hounds
Tiir, I can appreciate your desire to buy "the best" motor oil for your new STI. However, if you are tempted to use an oil weight or a product that does not conform to Subaru's very specific engine oil requirements for the STI, you really should take the time to read...
when a motor fails, and if you have been doing your own changes, Subaru will require at least receipts of those changes.
Either receipts from oil change places or purchase receipts if you did your own.
I am with you on the oil. I dont believe the motor will fail. However, if the motor has a...
Originally Posted By: BHopkins
From what I have seen, when it comes to lubrication of Subaru engines, there appear to be three camps. First is the performance camp. Those that own turbocharged engines. Not being in that camp, I'm not totally privy to their choice, but I have seen enough to know...
Originally Posted By: bluesubie
Originally Posted By: fredrik94087
odd that I can't find this thread using the forum's search engine, but managed to find it using google search.
I have a 2015 wrx.
2500 to 8,000 used RP 5w30.
8,000 to 17,500 used RL 10w40.
17,500 to 21,500 (present) Mobil1...
odd that I can't find this thread using the forum's search engine, but managed to find it using google search.
I have a 2015 wrx.
2500 to 8,000 used RP 5w30.
8,000 to 17,500 used RL 10w40.
17,500 to 21,500 (present) Mobil1 15w50
2500 mile OCI. No oil loss that I can measure.
I am running an...