C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Forgive my ignorance...

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Old May 21, 2003 | 04:44 AM
  #1  
Vette Head's Avatar
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From: Largo FL
Default Forgive my ignorance...

'85, 4+3, 92k is what I have...

What is the best oil and filter to use for changes? I read that even though it holds 5 qts, I should put 6-7 qts in. Is this a good idea? Sounds slippery to me.

Also, how do I identify a K&N air filter? The one I pulled has a thick foam and a red gasket, metal mesh on backside. Is this a K&N? If so, how do I know if it is still any good?

I'm a mechanical moron, so I figured what better to learn on then a Corvette?

Thanks
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Old May 21, 2003 | 05:13 AM
  #2  
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From: Boston
Default Re: Forgive my ignorance... (kirks518)

If you come over to this side of town I'll let you know which filter do you have. As far as oil, put it as much as it needs untill the full marks. :thumbs:

Later
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Old May 21, 2003 | 05:53 AM
  #3  
Vette Head's Avatar
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From: Largo FL
Default Re: Forgive my ignorance... (Darkness)

I'd be more than happy to drive over. Where are you?
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Old May 21, 2003 | 07:32 AM
  #4  
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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Default Re: Forgive my ignorance... (kirks518)

That sounds like a K&N to me. They put red dye in their filter oil. You might as well buy the K&N recharge kit for it and go to work on it. There's cheaper alternatives for cleaner and oil if you know what to look for.

Your vette takes 5 quarts oil, don't overfill it. You don't want the crank to be paddling through all that oil.

Fill up the filter first, and screw that on. I'd recommend a K&N oil filter, they're arguably the best quality (bulletproof), but are also pretty expensive comparted to Fram. Fram is crap, and I've bought a few that had metal shards in them straight out of the box. :rolleyes: Basically, the price is the best indicator of quality, and what good does it do ya to save $3 over the course of 6 months?

As for oil, I'd stay away from synthetic unless you're brave, and have lots of time to chase down new leaks. I'd go with Castrol or Valvoline 10-40.
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Old May 21, 2003 | 10:15 AM
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Default Re: Forgive my ignorance... (CentralCoaster)

I only use Mobil 1 oil.
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Old May 21, 2003 | 12:02 PM
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Default Re: Forgive my ignorance... (hngacurv)

I'm with CentralCoaster. I'm sure a lot of guys here probably use Mobil 1 or some form of synthetic, but in an older motor, I'd rather use Castrol or Kendall then spend my time chasing down new oil leaks appearing after the switch to synthetic.

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