Oil filter suggestions
Drifting
Joined: Mar 2011
Posts: 1,347
Likes: 121
From: Kernersville NC
NEVER use ZDDP additives. Most major oil companies say to never add anything to their oil. And they are 100% correct. I have tested ZDDPlus and Edelbrock's Zinc additive, in 3 different oils each. And in every case, they ruined each oil's carefully balanced additive package and significantly reduced their "Wear Protection" capability, compared to their capability BEFORE anything was added. Always use oil just as it comes out of the bottle.
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Racer
Joined: Apr 2011
Posts: 471
Likes: 3
I understand oil thread is not an exact science, I give you more info: I've a crate engine Goodwrench/Targetmaster Gen I Small Block, I have about 20k miles on it... they suggested to use 20w50 motor oil. Consider I rarely use the car when I'm below 40F
Last edited by Iron_dog; Mar 22, 2013 at 04:50 AM.
Le Mans Master
Joined: Oct 2007
Posts: 7,445
Likes: 971
From: Tennessee/Rhode Island
High CR -> thick oil? That makes no sense at all. High power, high rpm endurance motors can benefit from a thicker oil such as 10W-40. Some new cars specify 10W-60 (BMW E46 M3) or 5W-50 (Ford Boss 302).
A 20W-50 oil risks startup damage unless the car is never started in anything much below room temp.
10W-30 is a good compromise viscosity. Hard to go wrong with it unless you live in a very cold climate where you'd want a 5W-30 or even 0W-30.
A 20W-50 oil risks startup damage unless the car is never started in anything much below room temp.
10W-30 is a good compromise viscosity. Hard to go wrong with it unless you live in a very cold climate where you'd want a 5W-30 or even 0W-30.
The reason that Mobil does not make their 0W-40/5W-50/10W-60 readily available in the USA is that these grades are TRUE synthetic Group IV oils, and thus much more expensive than their mass market grades-5W-30/10W-30 etc-Group III dino oil.
True synthetics like Mobil 1 0W-40 will flow like water at 0 degrees unlike a dino oil 5W-30 which will flow like molasses! If you use a true synthetic, start up concerns will be nil. I no longer use Mobil 1 5W-30 in my 10 Z06-0W-40 Mobil 1 like the Z06's in Europe and around the rest of the world outside of the USA.
Last edited by jb78L-82; Mar 22, 2013 at 07:49 AM.
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Race Director
Joined: May 2006
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Thread Starter
Racer
Joined: Apr 2011
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Likes: 3
Thread Starter
Racer
Joined: Apr 2011
Posts: 471
Likes: 3
Race Director
Joined: Sep 1999
Posts: 11,360
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From: Plano TX
True synthetics like Mobil 1 0W-40 will flow like water at 0 degrees unlike a dino oil 5W-30 which will flow like molasses! If you use a true synthetic, start up concerns will be nil. I no longer use Mobil 1 5W-30 in my 10 Z06-0W-40 Mobil 1 like the Z06's in Europe and around the rest of the world outside of the USA.
Race Director
Joined: May 2006
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larger filter
their site will always point you to the stock equivilant. The HP-3002 would have a greater filtration area and allow slightly more oil to be added to achieve the proper oil level in the pan.
Race Director
Joined: Sep 1999
Posts: 11,360
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From: Plano TX
http://www.summitracing.com/parts/na...make/chevrolet
Click on the installation instructions and you will find that the recommended oil is 10W-30.
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
I have 10W30 in the crankcase of my recently rebuilt smallblock. The pressure gauge, on a cold start, over 1500 RPM, reads about 80 psi. After maybe ten minutes of operation, it drops down to about 60 psi, and stays there.
Would I be better off using 5W30 oil?
To answer your origional question, if you want to run a big filter, the medium truck filter fits the smallblock as long as you are not running headers. It's the NAPA/ Wix 1794. It has much more filtering area than the shorter filters, and probably will never go into bypass mode. You will be filtering 100% of the oil 100% of the time.
Would I be better off using 5W30 oil?
To answer your origional question, if you want to run a big filter, the medium truck filter fits the smallblock as long as you are not running headers. It's the NAPA/ Wix 1794. It has much more filtering area than the shorter filters, and probably will never go into bypass mode. You will be filtering 100% of the oil 100% of the time.
Last edited by gcusmano74; Mar 23, 2013 at 05:11 PM.
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From: Plano TX
Burning Brakes
Joined: Feb 2012
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I had a 468 solid roller BBC built by a local engine builder and when I mentioned running 10W30, he said to run 20W50 only. I'm in Florida, so running at 40 degrees or 0 degrees isn't a concern. Warmed up, the oil pressure is about 65 psi. What would be downside or advantage to running 10W30 is the engine "is built for 20W50"?
Maybe I got two Old School builders in a row, but the last guy was exactly the same...run 20W50. Previous engine was a HR 427.
Maybe I got two Old School builders in a row, but the last guy was exactly the same...run 20W50. Previous engine was a HR 427.
Race Director
Joined: Sep 1999
Posts: 11,360
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From: Plano TX
Advantages of a thinner oil:
Less engine wear. Most wear occurs at startup. Even if the temps are mild the thick oil still needs longer to get to the valve train.
Less distributor gear wear.
Lower main & rod bearing temps. Thin oil flows better and can remove more heat.
Less engine wear. Most wear occurs at startup. Even if the temps are mild the thick oil still needs longer to get to the valve train.
Less distributor gear wear.
Lower main & rod bearing temps. Thin oil flows better and can remove more heat.