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Just curious what Oil all you Bird Bros. are using in your RRs?
I use the 20/50 my self
PennGrade 1 SAE 10W-40 partial synthetic in all of my old cars currently. Just buy it by the case from Amazon.
Yep, Valvoline VR1 20W50!
Since I’m a rookie... why do you choose that particular oil?
Same Q for you ACME... why do you choose this particular oil?
High concentration of ZDDP which is necessary with flat tappet cams...and/or MoPar B/RB/Hemi engines with a pushrod operating the fuel pump.
And it is recommended by a half dozen camshaft manufacturers.
Same reason as ACMEA12. Also was recommended by my engine builder
I'm using Lucas 20/50
Rotella T5 10W30 with a bottle of ZDDP Plus.
Whatever brand you decide on, I'd use the least viscous oil you can that provides adequate oil pressure. Unless your engine bearings are shot, I'd start with a 0W, 5W, 10W-30 already formulated with higher zinc. Avoid the backyard home brew game with aftermarket additives. There are many good options out there for the above.
I have used this oil for many years and I change the oil every year before storage. I try to get 1000mi per year but don't always make it. The weather in Alberta Canada is not the same as CA USA. The oil is specially formulated for flat lifter engines and contains primary ZDDP, and secondary ZDDP (which activates at lower temperatures, ie: upon start up when the worst wear can occur).
This is from Camoil.
Good Morning Cal, Collector Automobile Motor Oil (CAMOil) is rated to American petroleum Institute (API) standard, "SF", meaning that it contains 1600PPM of ZDDP. It is one of very few oils on the shelf that not only has the API logo, but has certified, printed in the container as well. The certification means that it has been tested by the API and meets the rating and standard for SF oil. Please feel free to contact me here or by phone 1-403-828-7168 if you have any questions or concerns. Thank you for your interest in CAMOil.
Whatever your choice make sure oil meets some API standard and is designed for flat lifter engines.
In the interest of full disclosure, I'm the president of Chart Distribution Group in St. Louis, MO which is a bulk oil distribution company. I heartily agree on the need for API spec product. I also am a big fan of starting and warming the engine to get all contaminants fully into suspension before draining the oil. Otherwise, whatever has settled to the bottom of the pan is there waiting to contaminate the new oil.
20w50 for me too