06-16-2009
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#1
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Join Date: Oct 2005
Location: The land of the next-gen HMMWV
Drives: A BMW
Posts: 1,875
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What weight oil do you use?
And if you use something other than 10w-30 which is specified by the 1g dsm users manual, why did you switch?
Reason I ask, is my oil pressure is a little on the low side, which isn't too surprising for a high mileage dsm, and i've been thinking about switching to 10w-40 to boost it a bit until i get around to swapping out the oil pump. Is that a terrible idea?
__________________
Style's automotive engineer
Sponsored by DB Performance (dbptuning.com)
A dsm, a bimmer, a DORGE CUMMINZ, and a non running DSM race car... for now.
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06-16-2009
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#2
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: What weight oil do you use?
10W-40 is fine to use and falls within Mitsu's spec for use during the warmer months. What is your oil pressure at during idle and hwy cruise?
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Quote:
Originally Posted by Murlo26
I agree with Kracka.
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06-16-2009
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#3
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: What weight oil do you use?
I use 15W-40. Reason is because I just see a lot of the other guys at similar power levels using thicker weights. And if it's working for them, then hopefully it works for me.
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06-16-2009
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#4
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Banned
Join Date: Dec 2003
Location: Boulder, CO
Drives: Conquest
Posts: 5,049
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Re: What weight oil do you use?
I put 10w-30 synthetic in my quest because I got it for free at the dyno day, and it's working fine. But next oil change I'm going back to 20w-50 regular oil for the win.
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06-16-2009
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#5
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N17r0U$ br4D
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Re: What weight oil do you use?
I have always used 10-30.
What would be the benefit of running heavier oil? Does not having balance shafts and not porting your relief valve make your oil pressure get pretty high with the heavier stuff too?
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06-16-2009
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#6
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Unsure resident asshole
Join Date: Mar 2005
Location: MN
Drives: '92 Eagle TalonTSI w/many mods
Posts: 3,696
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Re: What weight oil do you use?
I saw a big difference in 15w 40 vs. 10w 30. The newer stuff my oil psi was around 80 at cruising/pulls, and around 50ish at idle, or just below. Old 10w30 it would be around 25 at idle, and 75ish max under load. I ran the oil feed off the filter housing, and no restrictor, and could have been the reason why my turbo detonated, and shifted the center shaft over.
__________________
Black 1GB Mafia #1
744AWHP/526TQ-Shootout mode
639.6AWHP/452TQ-DB's dyno
I wanna go fast.
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06-16-2009
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#7
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formerly ecoli
Join Date: Oct 2003
Location: On the dyno
Posts: 4,892
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Re: What weight oil do you use?
Quote:
Originally Posted by C3L1CA
I have always used 10-30.
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When you start making some decent power you might want to goto some thicker oil to protect that munchgsx stage 1 motor you got. |
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06-16-2009
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#8
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Finally Tuned...
Join Date: Apr 2006
Location: Zimmerman
Drives: Spyder GSX
Posts: 2,484
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Re: What weight oil do you use?
Amsoil 20w50 with larger main bearing gap by using acl race bearings.
__________________
94 Supra TT Auto, Project 9.xx in the works
97 Spyder AWD 6 bolt 2.3, 579hp 496tq **FOR SALE**
Amsoil Dealer
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06-17-2009
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#9
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Join Date: Feb 2008
Location: Wisconsin
Posts: 69
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Re: What weight oil do you use?
Amsoil 20w50 here as well.
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06-17-2009
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#10
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wants to be sideways...
Join Date: Dec 2006
Location: Winona Minnesota
Drives: Loud cars
Posts: 2,764
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Re: What weight oil do you use?
I did use 5w30 valvoline conventional at one point, but did not like how my lifters reacted. So then I went to 10w30 valvoline and it got better. Switched to valvoline full synthetic 10w30 and I leaked everywhere. lol
I plan to run full synthetic 10w30 once I get the car put back together.
__________________
Quote:
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Originally Posted by Matt D.
Leave the straight line highway dick wagging to the ricers and people who think they are good drivers.
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Quote:
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Originally Posted by 93GSX5SD
I'll second that. Its your car your choice. Enjoy your dsm experience.
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06-17-2009
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#11
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Transmission destroyer
Join Date: Feb 2007
Location: Cambridge
Drives: G37, 91 TSi
Posts: 7,150
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Re: What weight oil do you use?
I run royal purple 10w-30 right now, but will be switching to Rotalla 10w-30 this weekend.
__________________
Quote:
Originally Posted by scheides
I swing from the nuts of cold hard data. Anything less is a guess.
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06-17-2009
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#12
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: What weight oil do you use?
Quote:
Originally Posted by goodhart
I run royal purple 10w-30 right now, but will be switching to Rotalla 10w-30 this weekend.
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Good choice 
__________________
Quote:
Originally Posted by Murlo26
I agree with Kracka.
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06-17-2009
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#13
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Transmission destroyer
Join Date: Feb 2007
Location: Cambridge
Drives: G37, 91 TSi
Posts: 7,150
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Re: What weight oil do you use?
Quote:
Originally Posted by Kracka
Good choice |
thanks
Oh I forgot to mention, I already run Rotella in my DD, I will be switching to rotella in the DSM this weekend.
__________________
Quote:
Originally Posted by scheides
I swing from the nuts of cold hard data. Anything less is a guess.
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06-17-2009
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#14
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Join Date: Oct 2005
Location: The land of the next-gen HMMWV
Drives: A BMW
Posts: 1,875
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Re: What weight oil do you use?
Why Rotella?
__________________
Style's automotive engineer
Sponsored by DB Performance (dbptuning.com)
A dsm, a bimmer, a DORGE CUMMINZ, and a non running DSM race car... for now.
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06-17-2009
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#15
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: What weight oil do you use?
Its a good, proven, heavy-duty conventional oil.
__________________
Quote:
Originally Posted by Murlo26
I agree with Kracka.
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06-17-2009
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#16
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is Nashty
Join Date: Oct 2007
Location: Stillwater
Drives: Cyborg from Japan
Posts: 2,080
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Re: What weight oil do you use?
Is it cheap? Or is it expensive like Royoal Purple and AMSOIL? And where do they sell it?
__________________
-1990 Mitsubishi Cyborg 4WD-
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06-17-2009
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#17
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R U DTF bro?
Join Date: Aug 2003
Location: Oak Point, TX
Drives: C8 Stingray Z51
Posts: 20,620
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Re: What weight oil do you use?
Its priced like every other conventional, I think a gallon (4 quarts) is under $10 at Walmart.
__________________
Quote:
Originally Posted by Murlo26
I agree with Kracka.
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06-17-2009
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#18
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: What weight oil do you use?
Quote:
Originally Posted by Kracka
Its priced like every other conventional, I think a gallon (4 quarts) is under $10 at Walmart.
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Yeah it's price is extremely reasonable. Right on par with other name brand jugs of conventional oil. |
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06-17-2009
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#19
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Join Date: Oct 2005
Location: The land of the next-gen HMMWV
Drives: A BMW
Posts: 1,875
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Re: What weight oil do you use?
wow, crazy. For once something that people speak positively about that isn't stupidly expensive.
__________________
Style's automotive engineer
Sponsored by DB Performance (dbptuning.com)
A dsm, a bimmer, a DORGE CUMMINZ, and a non running DSM race car... for now.
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06-17-2009
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#20
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is Nashty
Join Date: Oct 2007
Location: Stillwater
Drives: Cyborg from Japan
Posts: 2,080
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Re: What weight oil do you use?
So I should stop running Royal Purple and run this stuff?
__________________
-1990 Mitsubishi Cyborg 4WD-
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