The new formula wd40 sucks, has almost no protection factor against rust like the original version... i was wondering what they took out of it...

I only use crc these days

So....it's now WD-41?

It's mostly kerosene.

WD-40's formula is a trade secret. To avoid disclosing its composition, the product was not patented in 1953, and the window of opportunity for patenting it has long since closed. WD-40's main ingredients as supplied in aerosol cans, according to U.S. Material Safety Data Sheet information, are:

50% "aliphatic hydrocarbons". The manufacturer's website claims this ratio in the current formulation cannot accurately be described as Stoddard solvent, a similar mixture of hydrocarbons.

<25% petroleum base oil. Presumably a mineral oil or light lubricating oil.

12–18% low vapor pressure aliphatic hydrocarbon. Reduces the liquid's viscosity so that it can be used in aerosols. The hydrocarbon evaporates during application.

2–3% carbon dioxide. A propellant which is now used instead of the original liquefied petroleum gas to reduce WD-40's flammability.

<10% inert ingredients.

the propellant used to be flammable, the new one less so.

It's the same stuff but like weeds get resistant to killer so does the rust

Read somewhere the original wd-40 was made with some sort of fish oil. Willing to bet that it is no longer acceptable to harvest that amount of fish.

Agree not the same for some years now

No its WD36..

It used to use propane as a propellant. We used it to start large diesel engines after they ran out of fuel. That was 20+ years ago.