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Old June 15, 2009, 03:39 PM   #1
(BH)
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Motor Oil = Gun Oil...... Opinions?

Im a big fan of not spending alot of money when i dont have to...and I was recently browsing another forum when i saw a thread dedicated to the amazing, life-changing greatness of using MOBIL-1 as a firearms lubricant.

Iv used ATF before on the rails, and now iv been using grease on some of my guns. I like to find ways to save a little money for ammo here and there since i dont have a ton of cash to pump into my gun hobby/addiction. A good bit of the stuff that is not made specifically for guns seems to work better than the stuff that is.

So does anyone know any reasons not use MOBIL-1 on my guns? Iv read some testimonies saying its the best gun oil ever.... so i just figure i need to get TFL folk's opinion on it.

Also, could it be bad for the finish?
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Old June 15, 2009, 03:56 PM   #2
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After a lot of shooting, I clean my pistols then let them soak in either ATF or synthetic motor oil. Always use synthetic motor oil as the lube if I don't soak. On the slide rails I use lithium grease.
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Old June 15, 2009, 04:04 PM   #3
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I've used Mobil-1 on my semi-autos. One thing, it stays where you put it.
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Old June 15, 2009, 04:18 PM   #4
srt 10 jimbo
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Works good In my Truck too.
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Old June 15, 2009, 04:48 PM   #5
MrBorland
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Here's a good read on the subject, though I don't know if the properties he attributes to motor oil applies to synthetics such as MOBIL-1 as well. At any rate, I use ATF. Very sparingly, too.

From: http://www.grantcunningham.com/lubricants101.html

"Ironically, the product that scores at or very near the top of just about everyone's testing is also the most available, and the cheapest. It also has good migration, a good boundary lubrication package, is the right weight (thickness) for general firearms use, doesn't oxidize over long periods of storage, and is compatible with a wide range of metals and plastics. In addition, it is recommended by at least one real degreed firearms engineer! Just what is this miracle elixir??...Dexron-type Automatic Transmission Fluid (ATF). That's right, plain ol' ATF."

"Motor oils: Generally good boundary lubrication (particularly the Havoline formulations), but very poor corrosion resistance and poor resistance to open-air oxidation. In addition, their pour-point additives often contain benzene compounds, which aren't a good thing to have next to your skin on a regular basis! ATF is better on every count, even if it is a tad more expensive. (ATF is still 1/10 to 1/100th the cost of a specialty "gun oil"!)"
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Old June 15, 2009, 04:51 PM   #6
Shadi Khalil
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I have never been able to bring myself to use motor oil. I use Mil-tec and like it. A bottle is about 5 bucks and last forever.
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Old June 15, 2009, 05:39 PM   #7
wnycollector
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MrBorland ya beat me to the Grant Cunningham ATF article!
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Old June 15, 2009, 06:53 PM   #8
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So I used Remoil in a pickup and it would always backfire with reliability regardless of the weather and dirt. Sometimes I had to clean the carb with Hoppes after that though. Good for avoiding deer collisions too, they smell that gun oil on your truck and stay away from the road.
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Old June 15, 2009, 07:00 PM   #9
Willie Lowman
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I run Valvoline 5W30 full synthetic in my Monte Carlo and my registered Uzi SMG.
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Old June 15, 2009, 07:17 PM   #10
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I use CLP on my guns, and motor oil in my cars.
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Old June 15, 2009, 07:19 PM   #11
luvsasmith
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Any weapons not to use ATF on?

Has anyone had bad experiences with ATF? OK for AR's and the like?

Just curious.
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Old June 15, 2009, 07:26 PM   #12
Samets
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This is great! I never realized you can use motor oil...
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Old June 15, 2009, 07:37 PM   #13
Alleykat
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You don't use "just motor oil," you use fully-synthetic Mobil 1! I use Mobil 1, exclusively, for lubing all my firearms. It's particularly effective on those AR parts that get hot during rapid fire...won't cook off like some of the mega-bucks firearms "specialty" oils.
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Old June 15, 2009, 07:50 PM   #14
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If you ever get the chance to kill a whale, a sperm whale in particular, the whale oil had the reputation as the best gun oil back in the old days. But even bear grease will work in a pinch.
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Old June 15, 2009, 08:04 PM   #15
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WD40

I was given the advice to never use WD-40. An old gun shop owner at the Shooters service in Livonia Michigan told me once that there was a state trooper killed in the line of duty due to using it on his duty gun. He claimed it rendered the bullets useless. Perhaps the ingredients that loosen stuck parts interact with the bullets and loosen the lead from the shell casing. I'm curious about the Mobil 1 synth.
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Old June 15, 2009, 08:33 PM   #16
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Yeah supposedly whale oil is the cream of the crop. From what I understand, ATF is actually just a man-made whale oil.... but not quite as good.

I wonder how much oil a whale could yield?
Any body got a boat with a crane on it??????
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Old June 15, 2009, 08:58 PM   #17
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ATF makes a great gun lube. It is the best lube I have found for locks and knife pivots. Motor oil tends to evaporate more quickly in open air though compared to products like CLP, RemOil, etc. Motor oil will lube guns fine but is not a good rust preventative. Breakfree Collector is an excellent preservative. I have use CLP for many years on many guns and never had any rust.
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Old June 15, 2009, 08:59 PM   #18
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At the rate I use oil I'm guessing that a can of Mobil 1 would last me, conservatively, about 130 years. Or more.
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Old June 15, 2009, 09:03 PM   #19
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This debate goes on and on but I use Mobile 1 synthetic on all my guns and it works as good or better than anything else I've used. It a LOT cheaper and I like the way it seems to penetrate the metal and keep it slippery without being wet.
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Old June 15, 2009, 09:03 PM   #20
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I have experimentally been using some Mobil 1 on the slides of my semi-autos after I use CLP. HOWEVER, YOU MUST DEFINITELY READ THIS THREAD: http://www.thefiringline.com/forums/...=cod+liver+oil
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Old June 15, 2009, 09:16 PM   #21
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KyJim,



They are out there. So be careful with those biomarine oils.

Last edited by (BH); June 16, 2009 at 12:30 PM.
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Old June 16, 2009, 06:43 AM   #22
jon_in_wv
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My thought on Mobile 1 for guns is that it does 99% of what any other gun oil does and it costs 99% less. When I go the range I usually take 2-3 handguns and 2-3 rifles with me. I have some serious cleaning to do when I get home. I use the oil to clean and lubricate and I go through quite a bit. The good news is Mobile 1 makes the steel pretty slippery so most stuff just wipes right off.
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Old June 16, 2009, 07:11 AM   #23
srt 10 jimbo
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I'll stick with the Break free LCP too
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Old June 16, 2009, 08:02 AM   #24
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Ed Harris former tech editor for NRA's Rifleman magazine, Ruger tech employee, etc. came up with this bore cleaner and gun oil years ago. It works for me, and seems to cut down on the amt and quantity of bore leading I encounter. It's cheap to make, satisfies my DIY nature and effective. There 'ya go.

For a first rate gun oil he recommended a 50-50 mix of the Dextron ATF and kerosene. The link if you care to see the entire discussion by Ed is: http://www.lasc.us/EdsRedBoreCleaner.htm

Regards, Rodfac


CONTENTS: Ed's Red Bore Cleaner

*

1 part Dexron ATF, GM Spec. D-20265 or later.
*

1 part Kerosene - deodorized, K1
*

1 part Aliphatic Mineral Spirits
*

CAS #64741-49-9, or substitute "Stoddard Solvent", CAS #8052-41-3, or equivalent.
*

1 part Acetone, CAS #67-64-1.
*

(Optional 1 lb. of Lanolin, Anhydrous, USP per gallon, or OK to substitute Lanolin, Modified, Topical Lubricant, from the drug store)
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Old June 16, 2009, 08:20 AM   #25
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The best I've used is Weapon Shield.
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