>But what is in it at the factory?
>The dealer says I should switch to synthetic, which means they didn't put it
>in at the factory.
>Why wouldn;t they?
>Thanks,
>TF
It IS 'synthetic' from the factory - Mobil 1 5w-30.
FWIW: I would simply follow the factory recommendation when it comes
to what oil to use and how often to change it.
I use 10w-30 in my '01 C5 (approved by GM for temps above 0F if I
recall correctly) since I never drive the vehicle when temps drop
(even) below 32F.
Also I 'follow the DIC' when it comes to deciding when to change the
oil - ie. never MORE frequently than what the DIC recommended UNLESS
that would exceed 12 months. For ME, that means I do only one change a
year, JUST BEFORE I put the car in storage for the winter.
If you are NOT driving (often) in excesssively COLD OR DUSTY
conditions, I would follow the DIC - the FACTORY engineers know what
they are doing when it comes to recommending oil change intervals and
all else is simply (typically) biased and/or personal opinions or
'superstition' based on 'old wives tales' or 30 year old info/beliefs
with no current scientific basis behind them.
Bob G. - 31 Mar 2005 16:52 GMT
>If you are NOT driving (often) in excesssively COLD OR DUSTY
>conditions, I would follow the DIC - the FACTORY engineers know what
>they are doing when it comes to recommending oil change intervals and
>all else is simply (typically) biased and/or personal opinions or
>'superstition' based on 'old wives tales' or 30 year old info/beliefs
>with no current scientific basis behind them.
===================
Honestly the Factory Engineers most likely Fudged the intraval they
recomend to meet the requirements of the marketing & legal types...
However I still belive in frequent oil changes... its only money and I
really enjoy tinkering with my cars... and changing oil is a labor of
love for me...
Easy to do...not expensive and it sure as hell beats "waxing"...
My "Toys" seldom see 1000 miles between oil changes..
Sure its overkill but the cars are after all my toys
Bob Griffiths
68 SS 396 Chevelle
64 & 72 Corvette Convertibles
76 79 & 95 Corvette Coupes
Dad - 31 Mar 2005 17:14 GMT
On Wed, 30 Mar 2005 23:03:31 -0800, "TF" <theforce@forcet.net> wrote:
>But what is in it at the factory?
>The dealer says I should switch to synthetic, which means they didn't >put
>it in at the factory.
>Why wouldn;t they?
>Thanks,
>TF
The dealer never said such a thing. Chevrolet began putting Mobil 1 in the
LT1 in the 1992 model year and it has been in them every since that time.
Now Kmart or a quick change oil outlet may have told you that, but that
means you have to be capable of listening to someone and you can't. Look at
the oil fill cap, what does it say? Read your manual, what does it say?

Signature
Dad
05 C6 Silver/Red 6spd Z51
72 Shark Black/Black/4spd
Then run screaming far away from that dealer. LOLOL
It came with Mobile 1........
>But what is in it at the factory?
>The dealer says I should switch to synthetic, which means they didn't put it
[quoted text clipped - 23 lines]
>
>

Signature
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--------------------------------------
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TF - 01 Apr 2005 17:01 GMT
Actually, I think what they said was that everyone switches from Mobil to Penzoil.
What btrand synthetic should I use?
Are they all non-detergent?
Non-detergent oil leaves the dirt in the block.
Thank,
TF
Then run screaming far away from that dealer. LOLOL
It came with Mobile 1........
TF wrote:
But what is in it at the factory?
The dealer says I should switch to synthetic, which means they didn't put it
in at the factory.
Why wouldn;t they?
Thanks,
TF
"RicSeyler" <ricseyler@SPAMgulf.net> wrote in message
news:TuF2e.7976$f%4.1378@bignews1.bellsouth.net...
Stay with synthetic!!!!!
The tolerances and clearances of the engine are specifically
designed for the weight and viscosity of synthetic oils....
TF wrote:
Mileage?
Oil?
Dealer says synthetic, but isn't that non detergent?
Non detergent leaves dirt buildup inside block.
Thanks,
TF
--
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35
ricseyler@SPAMgulf.net
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remove -SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson

Signature
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35
ricseyler@SPAMgulf.net
http://www.pcola.gulf.net/~ricseyler
remove -SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson
Bob I - 01 Apr 2005 21:34 GMT
Guess they would be wrong. I put Mobil 1 in all the vehicles even the
van, cause I can't be bothered to buy "special" oil just for it.
> Actually, I think what they said was that everyone switches from Mobil to Penzoil.
> What btrand synthetic should I use?
[quoted text clipped - 47 lines]
>
>
BDragon - 02 Apr 2005 02:36 GMT
Actually, I think what they said was that everyone switches from Mobil to
Penzoil.
What btrand synthetic should I use?
Are they all non-detergent?
Non-detergent oil leaves the dirt in the block.
Thank,
TF
Penzoil is a great choice. Liquid wax. Tear down a block that's been using
that for a while. Sheesh.
Bob G. - 02 Apr 2005 17:42 GMT
>Penzoil is a great choice. Liquid wax. Tear down a block that's been using
>that for a while. Sheesh.
==========================
Now is this a statement in favor of Penzoil or a statement infering
that Penzoil is junk.... Just curious... Needed a case of oil for
lawn tractors etc and passed on Penzoil yesterday ...not because of it
rep but because Sams was selling Mobil "clean drive" 40 percent
cheaper...
Bob Griffiths
Jabez - 04 Apr 2005 01:33 GMT
> BDragonwrote
> Actually, I think what they said was that everyone switches fro
Mobil t
> Penzoil
> What btrand synthetic should I use
[quoted text clipped - 4 lines]
> Thank
> T
I would use any Syn oil that had 4718 stamp on bottle. Only two I
have found so far is Mobile 1(5w-30)and Pennzoil Platinum (5w-30).
will buy the cheapest of the two
Honestly if you drive CONSERVATIVELY I bet you can put Synthetic oi
from Mobile 1, Pennzoil, Havoline, Castro, etc and you will not fee
a difference or do any harm to your engine