What motor oil are you running in your car?
 

Yeah, I'm not asking what oil the best. But what oil are you guys using in your car, and why?

I'm actually running Royal Purple, because they have a 5 Quart jug and I can just buy another quart. Since our oil capacity is 5.7 or somewhere around there. I can just head over to amazon or my local wal mart (Yeah I can't believe Wal Mart has RP)

I've been wanting to try other oil like AMSoil or Redline. But I cannot find a 5 quart jug. Are you guys actually buying 6 quarts at a time?

I was also going to buy AMSoil but on their site they only have a gallon (4 quarts) so I would have to buy an additional 2 quarts and an oil filter. That gets pretty expensive.

For street driving I use 0w-20 TGMO or 0w-20 Mazda with Moly, cheap and effective.

For track it's been either Redline 5w-30 or TGMO 0W-20 (didn't have any issues with either based on used oil analysis)

Eneos for me, I also use Eneos for transmission & love it. Usually I order a box of 1litter jugs from the distributor. (6 jug in 1 box)

just the oem synthetic 0w20. my local dealership sells a box of 12 for pretty cheap so i just get that out of convenience.


[edit] saw my box of oil yesterday and it's 0w20 for my car. i got a box of 5w20 for my gf's car though and got it mixed up

Mobil 1 5w-20 because a 5qt jug is $25 at Wal Mart.

So I read somewhere probably in this area, I think it was a forum post like this but they had a poll about who's running what oil in his/her car.

A couple people said that Mobil1 our boxer engines don't like it. Which is also why I havent been running Mobil1. Do you have any issues with it?

OEM Idemitsu 0W20 for now, got a good deal on it.

Motul 300V 5w30. My car is just for track use.

Toyota 0w20.

Toyota (which is Mobil 1 in Canada) 0w20

Street/winter DD right now

I use the same. Track/DD.

Toyota (TGMO) 0W20. I get it by the case (12 X 1L) from my local dealer for about $5 per liter. Good oil at a good price, plus they take my used oil when I pop in for a fresh case.

This is just my opinion... Those complaints were when the EJ blocks were everywhere, and on a huge forum where many were modded and driven extremely hard. To be honest I can't understand why one synthetic would cause issues where another doesn't. Mobil 1 is most likely the most common/popular synthetic so it makes sense that most complaints would be voiced by people using it. If it were really the cause of rod bearing problems or whatever, it would be FAR more widespread, and would affect other platforms as well. I personally believe the Mobil 1 myth was perpetuated by people looking for a scapegoat or something, and it just got out of hand. The vast vast vast majority of us really don't understand these oils on a chemical level, very very few people actually do, so for a bunch of armchair engineers arguing over the internet, it's pretty far fetched and I wouldn't give it much concern. There's been far too many Subarus run with Mobil 1 that have never had issues. The upset vocal minority will command the stage.

If it were a real issue, we'd be seeing the same trend with the FA, which actually shares nothing with the EJ series other than the flat four layout.
If it still concerns you, there's plenty of other options to put your paranoia at ease.

Really appreciate the feedback, I might actually start running Mobil1 now. I just bought Royal Purple. Lol so I might try it out next time if it goes on sale.

OEM Idemitsu, for me. Oil analysis other members have done have shown it to be very good stuff.

Yeah give it s shot, just keep an eye on oil consumption, that's really the only problem you can have with a modern synthetic under normal conditions, but its not necessarily the oil's fault.

Amsoil 0W-20 Signature for the street and short track or autocross. I switch to Amsoil 0W-30 Signature for longer/faster tracks.

I seem to recall that the "other" manufacturer of boxer engines (Porsche) recommends Mobil1 as the oil of choice for its boxer engines. I have no concerns about using it in the BRZ.

my car consumed a little bit of oil running idemitsu 0w-20. after running that for 6k miles i switched to mobil1 0w-20 AFE. not for the AFE part, but because flash point, and IIRC HTHS levels are higher in mobil1 than idemitsu 0w-20. its been 7k miles and my car no longer consumes oil since switching... maybe it has something to do with the flash point?

Synergyn 3w-30, planning on trying amsoil signature stuff afterwards 0w-20.

Same deal as what wheelhaus said. I used to run Mobil1 in my wrx swapped GC a ways back. People said the EJ didn't like that oil.

However from what I remember this problem originally stemmed from the guys with the version 3-6 STI engines in their swapped GC's. for whatever reason there was some correlation to spun rods and Mobil 1 oil in the JDM STI motor. However those motors were never terribly reliable in the first place haha

Shouldn't matter which one you go for now

I'm currently running 5w-20 Mobil 1 synthetic in my BRZ right now but I'm going to go back to 0w-20, found a good deal for some royal purple. Love that purp

0w20 synthetic from Acura, I believe Petro Canada does their oil. Reason? Cheap and its just a DD

Motul 8100 X-Clean 5w30 for my HKS supercharged car.

NAPA full synthetic 0W-20. Made by Valvoline and when on sale (which it is until tomorrow 2/28) it's $3.79 a quart.

eneos sustina 0w20

where did you get it???

Castrol EDGE Full Synthetic 0W-20:
http://www.pqiamerica.com/June%202014/castrol.htm

Picked up one 5-quart jug and one 1-quart bottle from Walmart:
http://www.walmart.com/ip/Edge-Synte...Quart/35931147
http://www.walmart.com/ip/Edge-Full-...r-Oil/35931148

Currently running ENEOS Sustina 0W20. I'll be picking up the same motor oil when the next oil change is due.

Walmart has also added the Penzoil Platinum Pure Plus 0W-20 in stores. You can pickup the 5qt jug there; however, you have to go somewhere like Advance Auto to find an extra 1 qt jug. For the first two years of ownership, Walmart only had the Mobil 1 OW-20. I'm glad we now have other 'reasonably priced' options.

http://www.walmart.com/ip/Pennzoil-P...5-Qts/36030479

FWIW: I went to my Toyota/Scion dealer to get Toyota motor oil for my FR-s, the parts man said they only have bulk oil for the service department and don't sell oil by the quart. He said Toyota recommends Mobil 1 for all of their cars, including the FR-s. If the dealer is recommending Mobil 1 I would have to believe them, I guess.

There are two types, the gold bottle with the titanium and the black bottle. I am using the black bottle and it seems to be fine. I can't find much info on it as it was called "syntec" with no "edge" before. Not sure if they changed the formula.

I still stay away from Mobil 1. Have seen few EJ20s/EJ25Ts with spun bearings after using it, maybe coincidence, maybe not.

Anyways, I have been using the Eneos Sustina 0w20, but I am switching back to the 0w30 Miller Nanodrive since I have a few liters of it left and it's too expensive to just throw out.

I think it's just new packaging. They decided to go black instead of gold. Other than that, there's probably no difference. The bottle bought and tested by PQIA last year was gold as shown on their site.

I picked up the black jug/bottle in store at Walmart, and it does have the Titanium label without the word Syntec on the front (on the back, it does say "Formerly Syntec").

http://i61.tinypic.com/2886wk0.jpg

I may give Pennzoil Platinum PurePlus a try the next time (made from natural gas certainly sounds interesting). They did certify it for API SN and ILSAC GF-5, but it seems that they didn't certify it for ACEA...

Ive been doing more research into it, and apparently a lot of people blame the HTHS rating, which is another method to rate viscosity at the most critical high temp areas, like bearings under load. I believe German Castrol has a 0w30 but it actually operates more like a 10w40 or something because it's HTHS is so much higher. The consensus seems to be higher is better, but it also means the oil is thicker, which means less efficiency and less power. The bigger consensus is for a daily driven car, use what's specified by the mfg, including HTHS ratings. Most synthetic 0w20s fall around 2.6-2.9 it would seem. If you're boosted or run at the track a lot, the constant high heat and high load would warrant a thicker oil with a higher HTHS rating, also an oil cooler. That may be a 5w20, 0w30, or even a 0w20 from another brand.

This would make sense why a lot of people on nasioc were blaming Mobil 1 (again I feel largely because it's so popular/common) and people are modding like crazy making the engine produce huge power with just an exhaust and flash to hit 300whp (nearly 400chp). Maybe 5w30 was a little thin to begin with, but you boost the power by 30% and of course you might have issues without addressing the oil.

:thanks:
Winner, winner chicken dinner!

Yes, Mobil1 is the most popular synthetic oil in the world by sales. So many knucklehead WRX and STI owner's modify their cars, don't check their oil levels, get a bad tune, and BAM! "MoBILe 1 sUx cuZ mY EnJUn bLOWEd up usINg iT"! And some continue to use 5W-30 "because it's on the cap", even after modding their engines. Low HTHS GF5 5W30 oils are designed to shear for the best fuel economy.

But as uoa's here have shown, the factory recommended GF5 0W20 from any brand does well in a LOT of conditions (excluding modded cars or track conditions).

Amsoil 0W20 (OE in the winter and SS in the summer)

Mobil 1 0W-20
The fall 2014 rebate is back.
Currently Walmart is the lowest retailer for a 5 qt jug of Mobil 1 Full Synthetic Motor Oil (various weights) at $26.68 - $12 rebate = $14.68 + tax.
Walmart, like the last rebate, is not listed under participating locations but I had no problem before getting the $24. rebate purchasing from Walmart.

Promo: https://mobiloil.com/en/promotion/mo...nd-mobil-super

Rebate form: https://apfco.net/secure/R8235W/Content/OfferForm.pdf

Online rebate form: https://apfco.net/secure/R8235W/Home/Entry After you submit one rebate it will ask you if you want to submit another.
Link through Discover to Walmart, buy online, and get 5% cash back, free pickup at store.

Royal purple 0 -20w