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Conference napalm::musclecars

Title:Musclecars
Notice:Noter Registration - Note 5
Moderator:KDX200::COOPER
Created:Mon Mar 11 1991
Last Modified:Tue Jun 03 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:182
Total number of notes:5467

53.0. "Lubricants" by CUJO::BROWN (Dave Brown) Sat May 04 1991 10:18

    
T.RTitleUserPersonal
Name
DateLines
53.1is there a better topic to put this in?CNTROL::REARWINthe quality of mercy is not strainedMon Sep 09 1991 11:063
    Hint on mounting a Transdapt oil filter relocation kit: put used heater
    hoses over the oil hoses to protect them from hot manifolds or moving
    parts.  Matt
53.2BARUBA::REARWINthe quality of mercy is not strainedThu Oct 03 1991 10:054
    When warmed up, it drops my oil pressure about 10psi, down to 55psi. 
    I'm using long oil lines routed forward from the oil filter part of the
    engine block, up behind the PS pump, to the fender well.
    Matt
53.3What is Polyethylene grease? JOAT::GOEHLI'm a fanatic, not a mechanic.Fri Nov 01 1991 09:5622
Does anybody know what Polyethylene grease is.  Does it have a more common trade
name - like white lithium or wheel bearing grease or break in lubricant?

Several places in my manual call for the use of polyethylene grease - there is 
also a ford part number.  In particular while replacing bearings in my 
transmission, the manual specified the use of polyethylene grease to seat
15 roller bearings in the outer race of the input shaft that mates with the 
mainshaft.  Two different NAPA stores said they had never heard of this grease
and would use white lithium in this application.

Recently, I'm working on my heads and valvetrain, and the manual again specifies
the use of polyethylene grease for the ends of the pushrods, and the valve stems
were they contact the rocker arm.  A NAPA parts store/machine shop said they
would use lithium grease is that application.

I beleive that breakin lubricant is Moly Disulphide (?) grease.  I think it
has a different function then the application I have - though I don't really
know what it is.  Can a real mechanic please illuminate my dark world.

I'd appreciate any input.

Eric
53.4TINCUP::MFORBESThis Space Intentionally Left BlankFri Nov 01 1991 11:4611
re .3

In the past, whan doing tranny/transfer case work, I have always used wheel 
bearing grease to hold roller bearings in place during assembly.

When assembling engines, I use breakin Moly based grease for the cam, lifters, 
oil pump, and ends of the push rods.  Bearings, rocker balls, etc. are lubed 
with Kendall "Nitro" 70 weight motor oil.

Hope that helps,
Mark
53.5API SG 10W40 too thin?ACESMK::DERIENZEWed Aug 05 1992 16:5323
    This is not a muscle car question, just general car lubricants.
    
    I've been using Texaco Havoline motor oil for several years in my 1987
    Subaru.  I use 10W40.  I bought a new case of Gard oil which is the
    10W40, but it is much thinner than the Havoline.  This is just going by
    sloshing it around in the container and pouring it.  I have no way to
    measure its actual lubricating properties.
    
    So, I looked more closely at the label, and it says "Meets or exceeds
    all characteristics where API service SG/CD is recommended."  The
    Havoline says something similar, but is for SE or SF.  I looked at my
    owner's manual, and it says to use SE or SF.
    
    I bought another case of oil (Sunoco Ultra 10W40) which said it was SG
    API rating.  It is thin too.
    
    So my question is, is SG better than SE or SF?  Does it supersede it
    for general use?  Or do I have to hunt around trying to read the small
    print on oil can labels now?  It seems to me that everyone is selling
    the SG stuff here in New Hampshire.
                                               
    
    Bruce DeRienze
53.6Get good oilCUJO::BROWNDave BrownThu Aug 06 1992 00:4914
    
    
    	My understanding is that generally speaking, the higher the letter
    following the "S", the better the grade of oil. In my opinion, oil is
    nothing to skimp on, you'll be sorry later. I'm a synthetic oil bigot
    but if I  had to choose a petrolium oil, I'd stay with Kendall or
    Castrol.
    
    	And BTW, I'd NEVER use 10W-40. It has too much VI improver and will
    sludge an engine up. In fact the use of 10W-40 will void the Ford new
    car warranty. Use 10W-30 for your typical passenger car. Unless of
    course, it burns more oil than a furnace.
    
    	Dave
53.7A side note on Castrol, and KendallGIAMEM::JGRADYGROUND POUNDERSThu Aug 06 1992 13:1719
    
        I used Kendall for a year or so, but noticed the warm idle pressure
    would drop from 45 lbs when new to 32 lbs after only 500 miles. It would
    dip even lower on 80-90 degree days after 1k-2k(this was in a 89
    Wrangler btw), sometimes down to the mid 20's. You could hear it in the
    engine too. 8^{
    
        I switched to Castrol GTX, when a freind of mine said it was the
    only oil he would use in his 4cylinder, as any thing else broke down
    way before his change interval. So, in the same jeep the oil pres. was
    60-65 lbs new, and would never drop below 35 lbs on the hottest days,
    even with 5k+ of use on it. This was 10-30W btw.
    
        I know there are more things to consider then just oil pressure
    when choosing a motor oil, but if the oil your using now turns to
    p*ss after a relativley short time then it's a good reason not to
    choose that brand again, IMO ofcourse.
    
       JG
53.8Thanks, I'll use it.SOLVIT::DERIENZEThu Aug 06 1992 16:5012
    Re .6, .7 
    
    Thanks Dave, I feel okay using the SG API stuff now.  But I hate to
    think I've sludged up my engine by using 10W40 all these years!
    I guess a couple more cases down the hatch won't make any difference
    now.
    
    I'll have to study my oil pressure guage, JG.  It never does anything
    that noticable.  It is high when I start up, but after that it seems
    to track the engine speed.
    
    Bruce         
53.9some questionsMVDS02::READIOA Smith & Wesson beats four aces, Tow trucks beat Chapman LocksFri Aug 14 1992 15:5228
>        I used Kendall for a year or so, but noticed the warm idle pressure
>    would drop from 45 lbs when new to 32 lbs after only 500 miles. It would
>    dip even lower on 80-90 degree days after 1k-2k(this was in a 89
>    Wrangler btw), sometimes down to the mid 20's. You could hear it in the
>    engine too. 8^{
    
>        I switched to Castrol GTX, when a freind of mine said it was the
>    only oil he would use in his 4cylinder, as any thing else broke down
>    way before his change interval. So, in the same jeep the oil pres. was
>    60-65 lbs new, and would never drop below 35 lbs on the hottest days,
>    even with 5k+ of use on it. This was 10-30W btw.
    
>        I know there are more things to consider then just oil pressure
>    when choosing a motor oil, but if the oil your using now turns to
>    p*ss after a relativley short time then it's a good reason not to
>    choose that brand again, IMO ofcourse.

Regular Kendall or Kendall GT-1?  Straight weight or multi-gade?

Comparing straight Kendall to Castrol GTX is like comparing skim milk to 
heavy cream.

Kendall GT-1 is the only oil I've ever been able to use because everything 
else thins out too much under load and instead of 45 psi at hot idle I have 
10 psi.  Kendall GT-1 in my hemi rens at 56 psi at cruising speed and 45 
psi at 900 rpm hot idle.


53.10Mobil 1?BRAT::FLEURY_WTue Jun 22 1993 16:0919
    Hi Everyone,
    	I had a question regarding Mobil 1 Oil.  I was driving my 88 Cougar
    5.0 liter V8 during a really hot day a couple of summers ago.  The temp
    was somewhere aaround 100-105 degrees.  I got downtown about 5 miles
    from my house and all of a sudden my engine started ticking really loud
    like I had a lifter hanging up and the temperature light came on (BTW I
    was not stuck in traffic or anything).  I shut the engine down and let
    it cool for 15 minutes and then when I started it the engine was still
    ticking.  I then wen to my nearest Jiffy Lube (I know but it had to be
    done right away) and had them change the oil.  As soon as it had the
    pennzoil in there the ticking stayed for about 5 seconds after starting
    and then went away.  Has anyone else had this problem with Mobil 1 Oil
    or was it maybe just a flukey thing that happened on this day.  BTW my
    Cougar had about 50000 hard miles on it at that point.  Any comments
    would be appreciated because I hear how everybody says synthetic oil is
    so much better than natural oil?  Sorry but I don't see it please
    enlighten me.
    					Walter Fleury
    
53.11BARUBA::REARWINabolish the RegistryWed Jun 23 1993 10:577
I'd read that synthetic oils are only to be used if you've got a new engine,
and it is used from the second oil change.  (Use natural oil for the break-in.)

Synthetic oils will disolve crud and glaze that in older engines takes up some
of the clearance between the worn mechanical parts.  Your experience sounds
similar to that written about in Hot Rod, etc....
Matt
53.12Were you, maybe, low on oil?CSLALL::NASEAM::READIOA Smith & Wesson beats four aces, Tow trucks beat Chapman LocksWed Jun 23 1993 18:146
How much oil did they take out?

Did they make an attempt to measure the amount or did they just drain and 
refill the crankcase?


53.13Full?ABACUS::FLEURY_WThu Jun 24 1993 13:337
    in reply to -.1 I checked the oil Immediately thinking it was down but
    it was full right to the top.  So it definately was not low on oil. 
    That is when I figured the oil had broken down and I drove it to a
    Jiffy Lube and had them change it.  I did not find out until later that
    the garage that had changed it the last time had put mobil 1 in it.
    				Walter Fleury