One more oil question
Thread Starter
Instructor
Joined: Aug 2006
Posts: 140
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From: St. Louis MO
One more oil question
I followed the earlier thread about zinc additives not being in oil anymore (ZDP? ZDDP? something like that...) until it totally lost me... 
Someone asked a question that never got answered, and I wanna know... I'm using Mobil 1 5W-30 in my 94 LT1... should I put something like STP in too? Or the GM EOS stuff (what does EOS stand for? Engine Oil Stuff?)? My Vette's not a DD, just a toy, only has 40K miles, but I don't want any excessive engine wear 'cause I plan to keep this baby a long time..
Help!? Thanks...
Update:
Just saw a great thread on the General Forum from GreggPenn about this same topic... except he's got some great info.
Someone asked a question that never got answered, and I wanna know... I'm using Mobil 1 5W-30 in my 94 LT1... should I put something like STP in too? Or the GM EOS stuff (what does EOS stand for? Engine Oil Stuff?)? My Vette's not a DD, just a toy, only has 40K miles, but I don't want any excessive engine wear 'cause I plan to keep this baby a long time..Help!? Thanks...
Update:
Just saw a great thread on the General Forum from GreggPenn about this same topic... except he's got some great info.
Last edited by fuzzydawg; Apr 6, 2007 at 05:28 PM.
Race Director
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From: SCMR Rat Pack'r Charter Member..Great Bend KS
STP does not claim to contain any ZDDP, or any other friction-reducing additives....therefore it most likely doesn't.
Look at their website; all the STP oil additives claim is that they'll "increase viscosity"....make the oil thicker, in other words.
I would think the GM EOS would be a better bet if you feel you need extra zinc/phosphate/stuff in your oil.
Too, it's my understanding that oil still has a certain amount of the old additives in it. They've just reduced the amount considerably.....
Larry
code5coupe
__________
I ain't easily impressed....
Race Director
Joined: Jun 2004
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From: WI
If you and others are really worried about the new oil standard and future oil standards, send samples to http://www.blackstone-labs.com/ they will tell you how the engine is doing and you will not have to guess. You can extend the oil drain witch saves you money and pays for the oil sample cost. I run Redline in mine, it has plently of ZDDP, but I mostly track the car. Does everyone need to run Redline, no.
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You don't need any additives in your car. The Mobil 1 is all you need. It is the older 1960's early 70's flat tappet engined cars that need the zinc. I use Mobil 1 in my newer car and Shell Rotella 15W 40 in my 1960's Vettes.
