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1970 Boss 302.

Posted By 55charliebird 12 days ago
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55charliebird
Posted 12 days ago
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Does this engine need ZDDP additive?  It is .30 over and rebuilt.
KULTULZ
Posted 12 days ago
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It doesn't need an additive, it needs a formulated engine oil. Maybe a booster for run-in.

Check VALVOLINE and BRAD PENN.

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KULTULZ - Hunkered down with steel pot and flak jacket ...


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Dave C
Posted 12 days ago
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I built and raced Boss 302's for many years, Stock it has flat tappet solid lifters, and a more radical cam than your normal grocery getter so spring pressure will be higher.
So, in saying that I would want an oil that had more zinc/anti wear content than run of the mill oil used in todays roller lifter engines.
This is my opinion.

Dave

Florida_Phil
Posted 12 days ago
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Valvoline VR1 Racing Oil's high zinc formula provides race-level protection for high performance engines on the race track or the highway. Its exclusive chemistry is designed to reduce friction and enhance power. It is among the most popular engine lubricants in all types of racing, including paved and dirt ovals and drag racing. It is formulated for race engines, but compatible with passenger vehicles too.      
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Tedster
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As VR1 is "racing oil", they specify a 3 month/3000 mile oci, extended oil drain by time intervals are not recommended. It may because they do not include the detergent/dispersants package that normal motor oils have.

It's my understanding that these additives don't make any distinction between zinc or sludge or carbon on components. This is apparently one reason "break-in" oils have very little in the way of detergents. I'm not poor but VR1 pencils out to something like $140 annually (+ filters.)
Florida_Phil
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Lots of opinions on this topic.  I use VR-1 because it's readily available and is compatible with solid lifter engines.  I change my oil when it looks dirty.  This means I change it often.  No science about that.  I order VR-1 online because it's much cheaper than the local auto parts stores and there is no delivery charge. I would not use synthetic oil in a YBlock.  I use it in all my modern cars.  There is a place for those oils and it's not in a 60 year old engine.  Just my opinion for what it's worth.
57RancheroJim
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I use to use VR1 in my FE and would change when started looking dirty, usually about 1500 miles. But I can't buy it in Calif anymore and didn't find anyone who would ship it here either. When I ran out of Valvoline conventional 10-30 to use in my Y block I started using Driven HR2 10-30, I change it every 3000 and haven't had any issues after 9000 miles on the new engine. Now I'm using it in my FE also, so far so good. I only use Wix filters.
KULTULZ
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As VR1 is "racing oil", they specify a 3 month/3000 mile oci, extended oil drain by time intervals are not recommended. It may because they do not include the detergent/dispersants package that normal motor oils have.


VR-1 is not actually a RACING OIL but an oil intended for old tech engines. VALVOLINE has different product(s) for a true race engine.

As for change frequency, an older engine runs dirtier than modern engines, hence the need for more frequent changes.

There are specialty oils for flat tappet break-in. You drop that after run-in and go with whatever oil you decide on.


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KULTULZ
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But I can't buy it in Calif anymore and didn't find anyone who would ship it here either.


- CA EMISSION LAWS -


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KULTULZ (11/25/2019)
As VR1 is "racing oil", they specify a 3 month/3000 mile oci, extended oil drain by time intervals are not recommended. It may because they do not include the detergent/dispersants package that normal motor oils have.


VR-1 is not actually a RACING OIL but an oil intended for old tech engines. VALVOLINE has different product(s) for a true race engine.



Valvoline considers it a racing oil and in any case it has long been used for that. They don't make any distinctions on the age of the engine, it's "3 months/3000 miles", again due to the additive package or lack of it.

They also sell a synthetic racing oil VR1, even more spendy, with a 500 mile oil change interval.


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