what oil weight to use? - Team Camaro Tech
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post #1 of 14 (permalink) Old Feb 5th, 17, 06:09 AM Thread Starter
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what oil weight to use?

I have a stock 327 engine and would like a few recomendations on what oil weight would be best. Also...conventional or full synthetic?
Thanks.
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post #2 of 14 (permalink) Old Feb 5th, 17, 06:16 AM
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Jim
 
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Re: what oil weight to use?

The experts will weigh in but I'm using Brad Penn 10-30 (partial synthetic) because of its high zinc (ZDDP) content.

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post #3 of 14 (permalink) Old Feb 5th, 17, 06:16 AM
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Re: what oil weight to use?

I use Rotella 15w40 in all these types of engines. Just enough zinc to make sure nothing bad happens.

If you run it in the winter with really cold starts you may want a lighter weight.

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post #4 of 14 (permalink) Old Feb 5th, 17, 06:42 AM
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Re: what oil weight to use?

10W30 Valvoline VR1. It has everything we need for our cars.
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post #5 of 14 (permalink) Old Feb 5th, 17, 06:47 AM
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Re: what oil weight to use?

Quote:
Originally Posted by DT View Post
10W30 Valvoline VR1. It has everything we need for our cars.
X2 on VR1

I'm running Lucas Hit Rod Oil in my Z28 with solid lifters.
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post #6 of 14 (permalink) Old Feb 5th, 17, 06:55 AM
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Re: what oil weight to use?

Yup, 10W30 Valvoline VR1 here too.

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post #7 of 14 (permalink) Old Feb 5th, 17, 07:18 AM
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Re: what oil weight to use?

Joe Gibbs HR5 10w-40
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post #8 of 14 (permalink) Old Feb 5th, 17, 07:38 AM
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Re: what oil weight to use?

Assuming you have flat tappets in your stock 327, I'd pay some attention to the ZDDP levels in whatever oil you choose. The link below will get you started with a partial list and a lot of good feedback in the thread. Search the site for info on oils, the members have provided a lot of good recommendations. I'd go with a 10w30 or 10w40 with ZDDP of at least around 1200. This level of ZDDP will rule out many if not most of the garden variety discount store oils.

https://www.camaros.net/forums/18-eng...ious-oils.html

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post #9 of 14 (permalink) Old Feb 5th, 17, 07:40 AM
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Re: what oil weight to use?

Amsoil has an oil for the older flat tappet engines with plenty of ZDDP in it, its called Z-Rod Id recommend that.

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post #10 of 14 (permalink) Old Feb 5th, 17, 09:13 AM
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Re: what oil weight to use?

Your glove box manual will tell you the oil weights to use vs the outside temp.

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post #11 of 14 (permalink) Old Feb 5th, 17, 01:44 PM
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Re: what oil weight to use?

10 W 30 will be fine.
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post #12 of 14 (permalink) Old Feb 5th, 17, 01:54 PM
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Re: what oil weight to use?

10w30. Pick the brand of your choice.

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post #13 of 14 (permalink) Old Feb 12th, 17, 01:34 PM
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Re: what oil weight to use?

X2 on Amsoil Z-Rod 10w-30.

1968 327 sport coupe. Son of original owner.
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post #14 of 14 (permalink) Old Feb 12th, 17, 07:11 PM
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Re: what oil weight to use?

Quote:
Originally Posted by islanddean View Post
I have a stock 327 engine and would like a few recomendations on what oil weight would be best. Also...conventional or full synthetic?
Thanks.
As you can see by the replies, you're asking the wrong question. There are other factors that have to be taken into account if you have a flat tappet camshaft. The EPA made the companies take most of the zinc and phosphorus out of the oil's as they reduce the life of catalytic converter's. without these additives your camshaft wife may be greatly reduced.

I personally use mobile one European blend 0W-40 or Mobile One 15W-50. There are additives you can buy also that contain the things you need.
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