10/30 or 10/40 oil

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Mar 18, 2006 | 01:14 PM

Z28man

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In the Staging Lanes

Joined: Mar 2006

Posts: 35

10/30 or 10/40 oil

i am new to this forum. i have a 95z28 camaro. i am currently running 5/30 castrol syntheic oil in my z. i have 168,000 miles on the car. i was curious if its wise for to use a light weight oil or should i switch to a more heavy weight oil. need advice please.

Mar 18, 2006 | 09:26 PM

user 7208220

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Joined: Oct 2005

Posts: 73

RE: 10/30 or 10/40 oil

10-40 for your mileage...yadamean?

Mar 19, 2006 | 04:43 AM

v8chvyguy

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Joined: Dec 2005

Posts: 594

From: Southern Illinois

RE: 10/30 or 10/40 oil

definately 10w40

Mar 20, 2006 | 07:56 PM

95_Z28

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Posts: 20

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RE: 10/30 or 10/40 oil

Isn't there a special oil for high mileage engines?
I remember hearing that it's suppose to keep the seals from leaking on higher mileage engines....or is it snake oil?