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View Poll Results: oil weight
5w-30 85 42.93%
10w-30 46 23.23%
non of the above 67 33.84%
Voters: 198. You may not vote on this poll

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Old 03-17-2008, 04:32 PM   #1
shamrock 05
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Default oil weight

I just want to see what the majority of Nasioc'ers are using. So vote and tell what kind of oil you are using.
And do you use the same weight all year??
Thanks
Ryan
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Old 03-17-2008, 04:33 PM   #2
Audiosavvy
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Royal Purple synthetic 10w-40 year-round (temp range here 30-115 f)
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Old 03-17-2008, 04:35 PM   #3
STIGuy115
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Royal Purple synthetic 5w-30, cause of the occasional frigid temps in the winter. I'll probably go to 10w-30.
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Old 03-17-2008, 04:37 PM   #4
Murdoc2112
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Valvoline Syn Power 5w-30
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Old 03-17-2008, 04:51 PM   #5
Ralliart4
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Castrol racing syn. 10-30 Amsoil 10-40
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Old 03-17-2008, 04:53 PM   #6
Chino Bling
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amsoil 5w-40 euro blend.
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Old 03-17-2008, 04:54 PM   #7
shamrock 05
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Quote:
Originally Posted by Audiosavvy View Post
Royal Purple synthetic 10w-40 year-round (temp range here 30-115 f)
Well we get about the same temps 0-100F and I have been running 5w-30 of Castrol and I dont have a modded car yet. Is it safe to run 5w-30 and do you think it would be a good idea for me to get a oil cooler???
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Old 03-17-2008, 04:54 PM   #8
r1xliquid
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i run castrol gtx 10w-40 down in south florida.
With the spun bearing reports, what is the disadvantage of running the heavier weight?
Because of the added friction i know it can effect MPGs slightly lower, and i suppose power could be slightly lower for the same reason. But this downside is welcome compared to a possible failure.
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Old 03-17-2008, 04:54 PM   #9
Ike83
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Valvoline Syn Power 5W-30 with K&N oil flter.......probably the best choice without using Mobil 1.
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Old 03-17-2008, 04:56 PM   #10
fastlanerex
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castrol gtx high milage 5w30 for me 85k miles on her now
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Old 03-17-2008, 05:00 PM   #11
Audiosavvy
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Quote:
Originally Posted by shamrock 05 View Post
Well we get about the same temps 0-100F and I have been running 5w-30 of Castrol and I dont have a modded car yet. Is it safe to run 5w-30 and do you think it would be a good idea for me to get a oil cooler???

No your setup should be fine. It doesn't get NEARLY as hot where you are. We have 4 months at 100+ every day, and somewhat mild winters, and your 10w-30 will work fine, and without an oil cooler
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Old 03-17-2008, 05:08 PM   #12
94'325is
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Rotella 5w-40 in Florida.
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Old 03-17-2008, 05:25 PM   #13
shamrock 05
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Quote:
Originally Posted by Audiosavvy View Post
No your setup should be fine. It doesn't get NEARLY as hot where you are. We have 4 months at 100+ every day, and somewhat mild winters, and your 10w-30 will work fine, and without an oil cooler
So being in Michigan, should I switch to 10w-30 or and run that year round OR stay with 5w-30 (what I have been using) and just keep running that year round?????????????????????????????????????


I dont know who moved this, but I wish it would have stayed in the 2.0L section!!!!!!

Last edited by shamrock 05; 03-17-2008 at 05:32 PM.
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Old 03-17-2008, 05:41 PM   #14
Arctic Penguin
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i predict lots of spun bearings this summer
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Old 03-17-2008, 06:06 PM   #15
steeter
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Quote:
Originally Posted by Arctic Penguin View Post
i predict lots of spun bearings this summer
Care to elaborate? Most oils quoted were a xw40? A 40 weight is good for most Scoobies in high temp..hell in most temps...

It is not so much the weight of the oil, but other factors such as shearing etc...

F'in noob!
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Old 03-17-2008, 06:24 PM   #16
gtfaded
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10 40, been using royal purple going to switchto castrol syn.
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Old 03-17-2008, 07:01 PM   #17
gi2005
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mobil 1 10 40
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Old 03-17-2008, 08:00 PM   #18
02KyRex
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man you guys are starting to make me nervous.....ive jsut got a 02 rex with 45k on the ticker and all this talk about spun bearing makes me nervous. Im getting ready to change the oil and wonderin what i need i say weather here is about 20-maybe 100 degrees in summer. Help is much appreciated since i don't want to spin a bearing im already working on the tranny swap for it
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Old 03-17-2008, 08:29 PM   #19
SUBYDOODIE
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Quote:
Originally Posted by gtfaded View Post
10 40, been using royal purple going to switchto castrol syn.
any reason for the switch?

</~~~ jus switched over from the dreadful mobil 1 to 5w30 royal purple
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Old 03-17-2008, 08:35 PM   #20
SUBYDOODIE
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Quote:
Originally Posted by gtfaded View Post
10 40, been using royal purple going to switchto castrol syn.
any reason for the switch?

</~~~ jus switched over from the dreadful mobil 1 to 5w30 royal purple
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Old 03-17-2008, 08:50 PM   #21
nardvark
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Pennzoil Platinum 5W-30
(But no one cares what I think, because I have no turbo)
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Old 03-17-2008, 09:34 PM   #22
Subydoo420
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Definately royal purple 5w-30. Car seems to love it to.
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Old 03-17-2008, 09:44 PM   #23
bluesubie
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Search this forum for GC or German Castrol. It's Syntec 0W30 and is a much better, shear resistant oil than Syntec 5W30. It is a Group IV oil unlike the Group III N. American Syntec 5W30.

It's kind of meaningless to ask what viscosity other people use. You should have a used oil analysis performed that will tell you what works best for you. People have run thin oils with excellent results.
Others have had problems. These guys can help you: http://www.blackstone-labs.com. Also try doing a search with uoa or used oil analysis in this forum.

Skip the weight on the bottle. If you favor bearing protection over fuel economy, run an ACEA A3 rated oil (or Motul, Redline or Amsoil) and not an energy conserving oil. Royal Purple xW30's are famous for shearing to 20 weights with very few miles on the oil.

-Dennis

Last edited by bluesubie; 03-17-2008 at 09:50 PM.
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Old 03-17-2008, 10:03 PM   #24
03WRX-WRB
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castrol syn 10-30 i use that now mobile 1 sucks
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Old 03-17-2008, 11:29 PM   #25
Brest Phan
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Just put in Rotella T Synth 5-40 based on info at Bitog.

Couldnt get Redline in my area.

Was going to put in Eneos but based on unremarkable performance reports on Bitog decided against it.

Until now Ive run M1 5-30 for 1120,000 miles-
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