Never heard that one, to my knowledge its made from refined petroleum products

 Ive heard that but wouldnt it just polute the water? Why not use some bait scent stuff ?

Ive have not used it but one of my mates swears by it sprays it on everthing 

 It's a very good product and will not harm mono line if sprayed on reels to protect from salt. Carnarvonite is right made from petroleum based products (not fish oils) and the recipe is actually a secret. It was originally produced to protect missile parts from coroding.

Yep, ive read it on the internet too..

I think ill just stick with my S-factor.

 I spray inox on my lures when there sitting around in my lure boxes but its not for attracting fish

WD40 smells very chemically .. you can get the actual 100% fish oil spray 

Thanks for your input boys. I do like the idea of giving my lures a quick spray of inox or WD40 after each use to stop rust on the treble hooks.

Sounds like you can use it for everything! Might have to keep a spare can next to the bed side table... ;-)

Cheers boys

Personally I wouldn't spray my lures (or any other gear) with anything other than freshwater but I have read stories of people that swear by dunking their lures in motor oil, castrol specifically.

I wouldn't spray WD40 on my reels either, because it is a solvent. Once it gets into the inside of your reel, it will dissolve alway all the good stuffs - grease, oil, lubes etc...which makes your reel's inside prone to corrossion.

I only spray innox to the screw joints. Other than that just reel oil & reel grease for the different parts.

I reckon to be safe, spray some canola or olive oil - edible vegetable oil on your trebles & split rings. In that way, it will protect them from corrossion + it is safe for the fish and environment. But I haven't done it myself...

 I was going to try some aniseed oil on my lures and see how that goes. I picked up a little pump spray bottle the other day.

Received the following about WD-40 via an email a few months back. Don't blame me if the following doesn't work as I haven't tested it and don't claim accuracy. See point 37 re fishing. PS I note the last line only lists the basic ingredient as fish oil (suggesting its not the only one)

"Before you read to the end, do you know what the main ingredient of WD-40 is? ..... I had a neighbour who had bought a new van. I got up very early one Sunday morning and saw that some vandal had spray painted red all around the sides of this white van. I went over and told him the bad news. He was very upset and was trying to work out what to do, probably nothing until Monday morning, since nothing was open. Another neighbour came out and told him to get some WD-40 and clean it off. It removed the unwanted paint beautifully and did not harm the paint that was on the van. I'm impressed! WD-40 - how did someone work out it would do that? 'Water Displacement No.40' The product began from a search for rust preventative solvent and de-greaser to protect missile parts. WD-40 was created in 1953 by three technicians at the San Diego Rocket Chemical Company. Its name comes from the project that was to find a 'water displacement' compound. They were successful with the fortieth formulation, thus WD-40. The Convair Company bought it in bulk to protect their atlas missile parts. Ken East (one of the original founders) says there is nothing in WD-40 that would hurt you. It's the first thing that has ever cleaned that spotty shower screen. If yours is plastic, it works just as well as on glass. It's a miracle! Then try it on your cooker top .... Kazamm! It's now shinier than it's ever been. You'll be amazed. Here are some other uses: 1. Protects silver from tarnishing. 2. Removes road tar and grime from cars. 3. Cleans and lubricates guitar 20 strings. 4. Gives floors that 'just-waxed' sheen without making them slippery. 5. Keeps flies off cows. 6. Restores and cleans blackboards. 7. Removes lipstick stains. 8. Loosens stubborn zips. 9. Untangles jewelry chains. 10. Removes stains from stainless steel sinks. 11.. Removes dirt and grime from the barbecue grill. 12. Keeps ceramic/terra-cotta garden pots from oxidizing. 13. Removes tomato stains from clothing. 14. Keeps glass shower screens free of water spots. 15. Camouflages scratches in ceramic and marble floors. 16. Keeps scissors working smoothly. 17. Lubricates noisy door hinges on vehicles and doors in homes. 18. It removes black scuff marks from the kitchen floor! Use WD-40 for those nasty tar and scuff marks on flooring. It doesn't seem to harm the finish and you won't have to scrub nearly as hard to get them off. Just remember to open some windows if you have a lot of marks. 19. Dead insects will eat away the finish on your car if not removed quickly! Use WD-40! 20. Gives a children's playground gym slide a 20 shine for a super fast slide.. 21. WD-40 is great for removing crayon from walls. Spray on the mark and wipe with a clean rag. 22. Also, if you've discovered that your teenage daughter has washed and dried a tube of lipstick with a load of laundry, saturate the lipstick spots with WD-40 and rewash. Presto! The lipstick is gone! 23. Lubricates tracks in sticking home windows and makes them easier to open. 24. Spraying an umbrella stem makes it easier to open and close. 25. Restores and cleans padded leather dashboards in vehicles, as well as vinyl bumpers. 26. Restores and cleans roof racks on vehicles. 27. Lubricates and stops squeaks in electric fans. 28. Lubricates wheel sprockets on tricycles, wagons, and bicycles for easy handling. 29. Lubricates fan belts on washers and dryers and keeps them running smoothly. 30. Keeps rust from forming on saws and saw blades, and other tools. 31. Removes splattered grease on stove. 32. Keeps bathroom mirror from fogging. 33. Lubricates prosthetic limbs. 34. Keeps pigeons off the balcony (they hate the smell). 35. Removes all traces of duct tape. 36. Folks even spray it on their arms, hands, and knees to relieve arthritis pain. 37. WD-40 attracts fish. Spray a little on live bait or lures and you will be catching the big one in no time. Also, it's a lot cheaper than the chemical attractants that are made for just that purpose. Keep in mind though, using some chemical laced baits or lures for fishing are not allowed in some counties. 38. Use it for gnat bites. It takes the sting away immediately and stops the itch. I can add another one......if you spray your garden pots around the sides it stops slugs/snails eating your plants : ) I can add another .... removes chewing gum from anything. And for some reason............spray it on your arthritic knee joints etc and it will ease them. Great for removing double sided tapes. P. S. The basic ingredient is FISH OIL.."

The material safety data sheet recommends nitrile gloves, and safety and safety glasses when used.

Someone did a gas chromatagram showing it is mostly light mineral oil.

http://www.wired.com/science/discoveries/magazine/17-05/st_whatsinside

I keep that stuff well away from anything to do with fishing, don't want it getting on ya reels by accident. S-Factor for the win.

Fisholene is a fish oil based lube, try that?

I would'nt you use something that is normaly used for rusted bolts and nuts etc, Try CRC they have a couple of products specifically for reel maintenance TACKLE GAURD designed for reel maitanece and safe on all lines including braid, they also have a new product called SALT TERMINATOR it's an anti corrosion for salt 

 CRC Tacklegaurd is horrible stuff. It does what it says it will but what it doesn't tell you is that if you stop using it the metal parts of your gear will rust twice as fast as it would if you were doing no maintenance at all. 

Personally I think all these 'protectants' are a waste of money. I fish 20-30hrs a week & my gear is usually smashed by waves & sand every trip out. So I fish longer & harder than most people & my gear goes through hell. I do nothing more than spray my gear with freshwater then dry rods & reels with a microfibre cloth while lures get air dried. You won't find any rust on my combos (up to 12yrs old)  & you would be hard pressed to find any rust on my lures either. 

I havea video I think called Charlie whites fishing machine.
he was one of the first to film fish taking lures underwater.
he did a test towing a clean lure and another lure exactly the same but he would add various scents to the lure ie cigarette smoke, mosquito repellent, etc. most had no effect although the fish did show a definite avoidance of cigarette taint as a final test to prove that fish would be repelled by some scents he dropped the lure in the bilge and smeared oil over it.
to his surprise the fish had a definite preference for the oiled lure, from memory 2 to one for I think.
after a bit of research he said he thought it was the hydrocarbons that where released that the fish where attracted to

Yeah quite an interesting topic. I have heard several times WD40 is a solvent and over time will compromise the overall performance of your reel by eating away at the grease inside. 

If a hungry mackie or coral trout sees 2 lures swimming past from a few meters away I would doubt it would have the senses to pick up if one 'smelt' better than the other? I would believe it is mainly sight and hearing (Ball bearing rattles) that triggers them to strike a lure. After coming to that conclusion I'm not sure if it would be necessary at all to spray the lures with a fish attractant? Sure enough if you spray a bait with a fish attractant it is going to work because the fish has time to be drawn to it and have a real good look. Lures travelling at 6-8 knots I'm not so sure.