Lucas 80-90 Hypoid gear oil

[SilvrT]

Is there such a thing as shelf-life for gear oil? I've had this 1 qt jug of this stuff since about 1998. Have used it in my last 3 bikes no problem ... is it still good or should I buy new?

[spike13]

oil doesnt break down just gets dirty if its in a jug with a cap it should be fine IMO

[Guest tx2sturgis]

If its been sealed for all this time, its still good. ALL petro based oils are already millions of years old before we start using them anyway.

 

 

 

[SilvrT]

If its been sealed for all this time, its still good. ALL petro based oils are already millions of years old before we start using them anyway.

 

 

 

 

Sealed meaning the cap is on?... yes.

 

Funny, a different forum and I get opposite answers ... 6 posts on the Wing forum and they all say trash it and get new stuff LOL

 

One even went to say a lot has changed in formula.chemistry over past 15 yrs... better to get new.

 

I guess if you're a "Winger", nothing but the best will do eh? (I wonder if this is an attitude thing?).

[stroker ace]

Sealed meaning the cap is on?... yes.

One even went to say a lot has changed in formula.chemistry over past 15 yrs... better to get new.

 

I would agree with probably better chemistry but would not think what you have is bad either.

[djh3]

I would say if its been sealed good with cap its fine. I mean how do you know how old the oil your going to buy off the shelf is? Does it have a sell by date? Yes formulas change, but if its a abc123 spec oil thats what the spec is from the time they make it until discontinued. Look at the API specs, when ever the car manufactures change up stuff they "invent" new specs for the oil. SA, SF, SG CG etc. Newer spec oil may superceed old spec and include them thus no one makes them any more because the newer spec covers it.