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Old 05-03-2012, 12:21 AM   #1
WRXineohP
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Default Rotella T6...what is the fuss about?

So I was thinking of doing an oil change tomorrow after my car gets tuned.

I have a 2010 WRX with:

Invidia Turbo Back exhaust
Grimmspeed Up-pipe with 38mm Tial EWG
Grimmspeed EBCS
AVO TMIC Intercooler
Cobb SF Ram Intake
One Step Colder plugs

I have always ran Mobil One Synthetic but almost killed the motor when it sucked all my oil dry in one month...

Since then I have had the car in and out of the garage fixing things and finally...fingers crossed... might have it running again...

So whats the fuss with Rotella T6? I thought it was for diesel cars? and what thickness would you run? and I ran 138 and 132 across the boards on a compression test...might this improve the next compression test I do?
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Old 05-03-2012, 12:39 AM   #2
jrodm12
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Mobil 1 sheers down pretty quick. The t6 has good uoa and doesnt sheer down nearly as fast as mobil1.
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Old 05-03-2012, 12:41 AM   #3
Zaider
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Rotella has proven time and time again that it does the job at a lower cost. Thats why
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Old 05-03-2012, 12:54 AM   #4
kingme
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Quote:
Originally Posted by jrodm12 View Post
Mobil 1 sheers down pretty quick. The t6 has good uoa and doesnt sheer down nearly as fast as mobil1.
M1 0W-40 is a good choice. M1 5W-30 is the problem child in the EJ motor.

Oh and, ib4 d00000000d
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Old 05-03-2012, 01:03 AM   #5
C4pt Insano
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I've heard sooo many different opinions and recommendations on oil my head hurts trying to think of what to use on my next oil change. I've decided on the normal subaru filter and am up in the air on whether or not to use one of those quick drain plugs. Beyond that I've just been using subaru 5w-30 synthetic until I figure it out, changing every 4 months/3000 miles in case it sheers quickly. Is rotella really the only go to? Does using the 5w-40 have any negatives as oppose to 5w-30? What makes it made for diesels but everyone uses it for our gas engines? I plan on using it from now on but I just dont exactly know why its best exactly, other than people say it is. Thanks
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Old 05-03-2012, 01:27 AM   #6
drewvdw
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T6 or german castrol 0w40. That's what I've always heard as best for our engines.
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Old 05-03-2012, 01:50 AM   #7
aboothman
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Dude there are threads everywhere about it. Here, IWSTI, bobistheoilguy.com/forums
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Old 05-03-2012, 08:37 AM   #8
trev762
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T6 is cheap for what it does and u can find it pretty much everywhere. But on the other hand it is designed for diesel engines so with high solvents not sure what the long term effects will be on the Subaru motors that's why I use motul 5/40 which is a group 5 motor oil
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Old 05-03-2012, 09:05 AM   #9
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All you have to do is go to the Service and Maintenance forum and look at the good used oil analyses on it. Some up to around 7k miles on the oil. If there's a negative on about any diesel oil, it's that they do not have as high as a level of Friction Modifiers (good for turbo spool, engine response, and better mpg's). Although, I do not know what the actual difference is.

It is a mixed fleet gas/diesel oil and meets API SM specs so it is fine for cars. MOST Energy/Resource Conserving oils will shear out of grade as they are pretty much designed to do for fuel economy. There are a few exceptions, like driving mainly highway miles, easy driving, etc. There's a recent analysis on Pennzoil Platinum in the Service forum where it stayed in grade. It may be the easy conditions or it could also be that the new GF5 oils are improving with respect to shear stability, although that is not a requirement for GF5.

The only Motul that uses Group V base stocks is the 300V line and Grouo IV PAO's are mixed in as well.

-Dennis
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Old 05-03-2012, 09:43 AM   #10
jay25RS
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I've had great UOA's on T6 in my 2006 WRX, 2010 WRX, and now in my STI. Although, with that being said, I am going to be switching to ENEOS 5w-30 and giving that a try. Seems to hold up very well from seeing other UOA's and cost only a $1 or $2 more per 4 quart bottle. Readily available at NAPA too!
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Old 05-03-2012, 10:01 AM   #11
skep18
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Been running T6 on my car for years. No issues. Just as a testimonial.
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Old 05-03-2012, 10:09 AM   #12
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Quote:
Originally Posted by drewvdw View Post
T6 or german castrol 0w40. That's what I've always heard as best for our engines.
GC is 0w30, however, it is very thick w30, almost w40. But on the bottle, its w30
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Old 05-03-2012, 11:03 AM   #13
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I've been running castrol edge 5-30 in my STI with no problems at all, it retains horse power 60% longer than other synthetics and I've noticed far less oil consuming hardly any at all and I'm running the Crawford AOS that seems as well. But pretty much all oils you will see some consuming of oil.
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Old 05-03-2012, 11:25 AM   #14
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Quote:
Originally Posted by CobbsSTI View Post
it retains horse power 60% longer than other synthetics
wuddafuk?
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Old 05-03-2012, 11:33 AM   #15
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Quote:
Originally Posted by CobbsSTI View Post

I've been running castrol edge 5-30 in my STI with no problems at all, it retains horse power 60% longer than other synthetics...
Do you mean the castrol stays at 30w 60% longer than other "Energy Conservation" oils?
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Old 05-03-2012, 11:50 AM   #16
WMCCook29
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Quote:
Originally Posted by WRXineohP View Post
and what thickness would you run?
T6 only comes in 5w40.

Quote:
Originally Posted by WRXineohP View Post
and I ran 138 and 132 across the boards on a compression test...might this improve the next compression test I do?
Are you asking if changing oil brand/weight will improve your compression results? If so, oil has nothing to do with compression results.
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Old 05-03-2012, 04:03 PM   #17
s2ktosti
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Quote:
Originally Posted by CobbsSTI View Post
I've been running castrol edge 5-30 in my STI with no problems at all, it retains horse power 60% longer than other synthetics


This statement makes no sense.
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Old 05-03-2012, 06:52 PM   #18
bluesubie
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Quote:
Originally Posted by WMCCook29
Are you asking if changing oil brand/weight will improve your compression results? If so, oil has nothing to do with compression results.
Possibly not in the OP's 2010, but thicker oils can improve compression in worn engines.
Quote:

Certainly engines that have experienced significant ring and liner wear benefit from thicker oils. Thicker oil use results in compression increases, performance improvements and reduced oil consumption.
http://www.machinerylubrication.com/Read/518/motor-oils

-Dennis
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Old 05-03-2012, 07:04 PM   #19
sc00ter
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Quote:
Originally Posted by b1aze View Post
wuddafuk?
This made me LOL at work. Thanks ***hole.
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Old 05-04-2012, 09:02 AM   #20
WMCCook29
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Quote:
Originally Posted by bluesubie View Post
Possibly not in the OP's 2010, but thicker oils can improve compression in worn engines.

http://www.machinerylubrication.com/Read/518/motor-oils

-Dennis
Thanks for the clarification.
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Old 05-04-2012, 03:22 PM   #21
my name is joe
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Quote:
Originally Posted by CobbsSTI View Post
I've been running castrol edge 5-30 in my STI with no problems at all, it retains horse power 60% longer than other synthetics and I've noticed far less oil consuming hardly any at all and I'm running the Crawford AOS that seems as well. But pretty much all oils you will see some consuming of oil.
I'm glad someone knows how to read a label on the bottle
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Old 05-04-2012, 03:34 PM   #22
ManualOverAuto
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For ****s and giggles I'm going to put some in my old yahama ttr 90 bike today. People say 10w40 is good weight, so t6 will be sufficient.

I do like telling people that I put diesel truck oil in my little 4 cylinder car, just to see their reaction, which is usually confusion.
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Old 05-04-2012, 03:48 PM   #23
ChopstickHero
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I've been reading up on oil threads and wanted to try the RT6 b/c of all the good things I hear. however, regular price RT6 in Toronto is unfortunately $43+tax for a 5L jug (unless it's on sale at about $30). I was about to pick some up to try, but couldn't ignore the Pennzoil Platinum which was selling at 50% off (5L for only $23) and picked up two jugs. I'll try Rotella another time when it's on sale.
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Old 05-04-2012, 04:39 PM   #24
ManualOverAuto
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Quote:
Originally Posted by ChopstickHero
I've been reading up on oil threads and wanted to try the RT6 b/c of all the good things I hear. however, regular price RT6 in Toronto is unfortunately $43+tax for a 5L jug (unless it's on sale at about $30). I was about to pick some up to try, but couldn't ignore the Pennzoil Platinum which was selling at 50% off (5L for only $23) and picked up two jugs. I'll try Rotella another time when it's on sale.
That's crazy expensive! I got a gallon jug of T6 for $21 at Walmart.
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Old 05-04-2012, 06:43 PM   #25
bluesubie
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Quote:
Originally Posted by ChopstickHero
I've been reading up on oil threads and wanted to try the RT6 b/c of all the good things I hear. however, regular price RT6 in Toronto is unfortunately $43+tax for a 5L jug (unless it's on sale at about $30). I was about to pick some up to try, but couldn't ignore the Pennzoil Platinum which was selling at 50% off (5L for only $23) and picked up two jugs. I'll try Rotella another time when it's on sale.
But how much do you spend on one tank of gas and how many miles does it last?

-Dennis
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