More Aged Oil!
- Thread starter HammerDown
- Start date
I don't need you. Sixty bottles of PYB '88 I can get almost anywhere.
Hermann
Site Donor 2023
Were they stored on their side like fine wine?
I would 100% use that oil in my mower.
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I'd use that in my late 70's early 80's big blocks all day long.
If you're scared to use it I'll gladly buy it and pay shipping so I can use it in my old Briggs flatheads. I love old Pennzoil.
For what it's worth I have a bunch of old API SH 5w30 and 10w30 that I've been using in my 2014 Pathfinder with zero issues.
For what it's worth I have a bunch of old API SH 5w30 and 10w30 that I've been using in my 2014 Pathfinder with zero issues.
3539 is the stock number. If you look at the UPC code, you'll see it's the last four digits. The other printing seems illegible.
What we're looking for is something that would look a lot like this: OF22G. This decodes as O for Oil City canning plant, F for June, 22 is the date, and G for 1997.
That method of coding was discontinued at some time after the merger with Quaker State in 1999, but so was the four digit stock number, which we still see in use here. The address still says Pennzoil Products Co, not yet Pennzoil-Quaker State. In and of itself, that's not especially meaningful because containers with out of date information were used until supplies were depleted.
In any event, there are several indications this oil dates to the late '90s. It's understandable if you're hesitant to use it. I agree with the earlier post that suggested to pour out a quart into a clean container and look for residue on the bottom of the bottle. If there is a very thin film, I wouldn't hesitate to use it. If there is more than say 1/16th of an inch, that's an indication of pretty serious additive fallout. I'd still use it in OPE, but maybe not a new, expensive piece.
What we're looking for is something that would look a lot like this: OF22G. This decodes as O for Oil City canning plant, F for June, 22 is the date, and G for 1997.
That method of coding was discontinued at some time after the merger with Quaker State in 1999, but so was the four digit stock number, which we still see in use here. The address still says Pennzoil Products Co, not yet Pennzoil-Quaker State. In and of itself, that's not especially meaningful because containers with out of date information were used until supplies were depleted.
In any event, there are several indications this oil dates to the late '90s. It's understandable if you're hesitant to use it. I agree with the earlier post that suggested to pour out a quart into a clean container and look for residue on the bottom of the bottle. If there is a very thin film, I wouldn't hesitate to use it. If there is more than say 1/16th of an inch, that's an indication of pretty serious additive fallout. I'd still use it in OPE, but maybe not a new, expensive piece.
I'm still using Exxon Superflo that was bought in the mid 90's in one of my cars. I say pour it in and let it do it's job. Last time the oil was changed in my mom's '99 Grand Marquis I found 6 quarts of Amoco Ultimate that I suspect is some I gave dad back in the '80's and there's been no problems using it. If oil has a 4 year shelf life someone needs to tell that to my cars. They've all been running on 10-25+ year old oil for at least the last 10+ years. If I tossed all my 4+ year old oil in the trash I'd probably lose about 50 gallons of perfectly good oil.
You feel there's enough Zinc for flat tappet cams?
I only see a little dark residue and just in the corner, absolutely not even coating the entire bottom of the bottle.
I also have a few Exxon Super Flow, I believe in red bottles.
I think it's suitable to use.
Mine is 10w40 also in red bottles. I had that oil in my garage when I bought my '97 Ford Escort new in Feb. 1998. Other than the factory fill that's all that's ever been used in it. Back in the '80's I bought lots of Exxon Superflo and Amoco Ultimate since Western Auto would run a sale about every other week on one or the other for $5 a 12 quart case with a $5. rebate. All a case of oil was costing me was what ever a postage stamp cost to send in the rebate. I've also got a few cardboard cans of Castrol 20w50 left that I bought for a motorcycle in the mid '80's.
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