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- From: samblane@oasys.dt.navy.mil (Sean Samblanet)
- Newsgroups: rec.autos.tech
- Subject: Re: Pre-luber summary & Oil Changes
- Message-ID: <24556@oasys.dt.navy.mil>
- Date: 3 Sep 92 17:07:31 GMT
- Article-I.D.: oasys.24556
- References: <15200042@hpspdla.spd.HP.COM> <chris.715353658@speckle>
- Reply-To: samblane@oasys.dt.navy.mil (Sean Samblanet)
- Organization: Carderock Division, NSWC, Bethesda, MD
- Lines: 37
-
- In rec.autos.tech, chris@speckle (Chris Schanzle) writes:
- >In <1992Aug31.065716.27753@mr.med.ge.com> hinz@picard.med.ge.com (David Hinz Mf
- >g 4-6987) writes:
- >>Paul Welch (paulw@hpspdla.spd.HP.COM) wrote:
- > (much good stuff deleted)
- :TIP2: run Mobil 1 and change it about every three thousand miles.
- :Mobil 1 won't coke anywhere as easily as conventional oils in the
- :turbo, will gradually clean sludge out of your engine (my valvetrain
- ;is much cleaner with Mobil 1 than Penzoil/Castrol used at the same
- :change interval: 3,300 miles (3 times per 10K miles)), has less
- :friction, great viscosity range, and is about $3.50 a quart. Hell, I
- :even run 5W-30 in my lawnmower (all 2/3's of a quart).
- :
- :I justify Mobil 1 by telling myself Jiffy Lube would charge about as
- :much for an oil change (my cost is 3.5 qts * $3.5 + $3 FRAM filter =
- :$15.25), and I sure wouldn't be getting Mobil 1! And I won't
- :overtighten my drain plug or oil filter, I can crank the motor to get
- :oil pressure back before starting, and so on. Plus, I get warm
- :fuzzies knowing Mobil 1 is protecting my engine. YMMV. :-)
-
- This part and everything else well said! As I read the posting
- I kept thinking of Things I was going to add but you covered them all.
-
- One thing to add about Mobil 1. A pit crew friend worked with a
- chysler turbo in showroom stock SCCA raceing around '87-'88. The turbo
- was oil cooled (as is my Eagle Talon Turbo) which sends oil temps sky
- high. In his testing oil temps (under race conditions) were around
- 340 F. At these temps he said the oil was turned to sludge in a few
- hours. So they ran Mobil 1 at a 24hour endo race and sent out a sample
- to be tested. The labs response was "Why are you sending us new oil?".
- I happen to race my car on race tracks so Mobil 1 is all I use. But
- reguardless, I will always use Mobil 1 if I own a turbo even if I don't
- race it. Turbo charged engines just add to much heat to the oil to
- be trusted to conventional oils.(witness the oil coolers on most turbo
- cars.)
-
- Sean
-