Meteor: that was great information! I will have to find where I put it though.
I said "pass the popcorn" because with the oil issue there are 12 opinions for every 5 people that answer! 



Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

According to the results of googling "motor oil expiration" and "motor oil shelf life" the consensus appears to be yes, it does expire.  Mobil Oil state in their faq that it is 5 years.  Valvoline, on the other hand, state that there is no expiration as long as it meets or exceeds the api rating and is stored properly, but without any definition of what proper storage is.


Lawrenceville, GA

"10-40 in the old paper cans that I picked up a a swap meet last year while it lasts."

I read on these pages that oil has an expiration date. Is that true?


"FREE SAMPLE"

The only problem with the old threads is that specifications keep changing. Rotella was good. Not good now. Going to keep with Valovline 10-50 racing oil that was recomended when I built my 312 a few years back unless it has changed too. Not sure what to use in the 302 in the '65 Mustang that I am finaly gettring road worthy. Engine was built many years ago and broken in but only has a few miles on it. Consering using a stash of valvoline 10-40 in the old paper cans that I picked up a a swap meet last year while it lasts. A retired mechanic friend says he read an oil report that says Mobile 1 is fine for the old flat tappet engines and that WalMart genaric full synthetic is compareable to Mobile 1. Can anyone confirm this? I think its cheaper than Valvoline racing oil.

Ask Ted what he thinks of Rotella although I don't know if it applies to T6 synthetic





54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Oil threads never really die off, guess it's better for an old thread to re-surface than starting a new one....... So I'm another fan of Rotella. T6 synthetic 10/40 with a zinc additive for extra protection

"The American Petroleum Institute’s new heavy-duty engine oil categories effectively eliminate backwards compatibility in the industry. CK-4 is the replacement for current diesel engine oil categories, while FA-4 is a new category altogether, created in response to updated greenhouse gas (GHG) emission standards affecting engines to be manufactured in 2017 and after.

Speed says owners should just steer clear of diesel engine oil in their gasoline engines and pay close attention to new labeling if using diesel engine oils in their towing vehicles.

“This really is risk management,” says Speed about the importance of protecting engines with the right oil, from the start. “Curveballs are being thrown here. So, buyer beware.”

He recommends during the break-in process owners turn to a ZDDP-enhanced oil rather than the new diesel engine oil options to improve surface mating and extend the durability of internal engine components in their new or rebuilt engine.

JOE GIBBS RACING OILS - http://admin.compperformance.com/news/dro/training-center/latest-tech-bulletins/buyer-beware-diesel-oil-changed/

SHELL ROTELLA was the go to oil some years ago. The formulation was changed due to emission factors. The original oil was made still available for early diesel usage in 5-GAL pails for fleets with older equipment and to lessen the chance of consumer purchase.

Some so-called RACING OILS  -  A true racing oil has a much lower detergent/dispenser packge. It is not intended for street use although some refiners use the label RACING OIL as a gimmick and their product(s) may be street engine comparable.

Same with specifications from a 1955 SHOP MANUAL. What is described there is how old?

____________________________

daniel why don't you read out the info i sent you 2 years ago to the chap asking about oil for ys

pass the popcorn lol!

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

And it’s a straight 40 at that. Oh well.

miker
55 bird, 32 cabrio F code
Kent, WA
Tucson, AZ