Part# 08-14636


ASL CamGuard is a comprehensive additive package formulated to supplement specific functions in a wide variety of motor oils. It was designed to dramatically improve the performance of all mineral based , semi-synthetic and fully synthetic motor oils in the areas of corrosion protection, wear reduction, and seal protection.

Camguard is an advanced oil supplement designed to give regular engine oil what it needs to protect and lubricate any engine. Camguard is a synergistic blend of advanced oil additives from all over the world, designed to reduce wear, curb deposit formation and more importantly protect engines against rust and corrosion. It contains multiple corrosion inhibitors for both ferrous and non-ferrous metals. A combination of ashless anti-wear compounds, anti-oxidants designed to reduce carbon deposits and special seal conditioners to prevent oil weeping. Camguard is FAA accepted and approved for use in piston engine aircraft oils meeting SAE-1899 standards. Camguard is compatible with piston aircraft oils, passenger car motor oils, most marine oils, and heavy-duty diesel oils.


  • FAA accepted
  • Fights rust & corrosion
  • Vastly reduces engine deposits
  • Provides extreme pressure and anti-wear protection
  • Conditions engine seals for extended life


  • Frequently Purchased With
  • Customers Also Viewed


I have been using Camguard for 8 years on my IO-360 in my Mooney, and when we had to pull two cylinders after 1700 hours, my mechanic was amazed. Piston pins pushed put with his finger, and the inside of the engine was clean with no varnish or noticeable buildup. He said he had never seen anything like it in his 50 years of aircraft work, and was going to start using it in his personal planes and recommend it to all his customers. Best thing I can say about Camguard is for me, it works exactly like the manufacturer says it will. And that is all I ever want from a product.

John F
November 1, 2021

This stuff is incredible. I used to run Aeroshell 15W50 and W100plus until I realized it made my engine leak, and didnt stop corrosion. Expensive, and didnt work. Now I run W100 and Camguard. I have been flying piston aircraft for almost 50 years now, and this stuff works, as an extreme pressure lubricant - cam lobes - and on internal corrosion - cam lobes and cylinder walls - and it even stops valve sticking when you park it. Incredible. I wish I was sponsored by these guys. I know its not cheap, but see what Willie Nelson says on that subject.

Andrew B
May 17, 2021

Just buy it. This stuff has proven its self through multiple tests throughout the years. An engine with Camguard is a happier engine.

Michael H
May 6, 2021

Good shipping speed.

Peachtree A
March 31, 2021

just what I was looking for works great fast shipping thank you

Michael E
March 30, 2021

Timely delivery, product arrived as expected

Robert B
March 24, 2021

Love this product !

Ravinder D
February 26, 2021

Good price and quick delivery

Wallace A
February 15, 2021

Quick Delivery and as expected.

John C
February 1, 2021

Ive used Camguard for several years in my 0-200 motor. Excellent product.

Michael M
January 26, 2021


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: How much CamGuard do I use per oil change? I use AeroShell mineral. Thanks.

Per the manufacturer, one pint of CamGuard will serve 8-10 quart sump for the change.

Q: Is there a shelf life for Camguard aviation oil additive?

Per the supplier: The shelf life is indefinite.

Q: Is CamGuard safe to use in 15W-50 oil? I understand 15w50 has additives blended in and I dont want to add camguard if doing so would have adverse affects. Thank you

Per the supplier: Yes. CamGuard is perfectly safe to use with 15W-50 oil.

Q: I have a 12 quart sump, what is the correct amount of Camgaurd to use at oil change?

The correct ratio is 1.6 oz of Camguard per quart. So for 12 quarts, you would need 19.2 oz.

Q: Just had the annual done on my 1976 C182P. Oil change with 10 qts added out of 12 available in sump. Have only done two high speed taxis since the annual. Can I add Camguard at this time?

It is recommended to add Camguard during each oil change. You would add 1.6 ounces of Camguard Aviation with each quart of makeup oil between oil changes.

Q: Does CamGuard retard break-in or cause it to cease if used during new engine break-in period?

Camguard is made NOT to be used during the break-in period of a new engine.

Q: Can CamGuard be used with Aeroshell 15W-50 oil which already has additives?

Yes, this can be used with 15W-50.

Q: Can and should Camguard be used with PHILLIPS 66 X/C AVIATION OIL 20W50?

Yes, this is one of the preferred oils that Camguard recommends mixing this with.

Q: I just changed my oil (8 qtrs). Do I just add it on top of the new oil? Is it ok to add it even if the new oil has a couple of hours?

Per Camguard: You would need to discuss this with the engine manufacturer or your A&P for this information.

Q: Is it safe to use Camguard with Aeroshell W100PLUS?

Yes it is safe but it will not do any better with the camguard as the W100plus already has an additive IN it.

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