MELARQT CamGuard aircraft oil additive 16 oz — anti-wear & corrosion protection for air‑cooled piston engines

MELARQT CamGuard is a 16-ounce oil additive formulated to reduce corrosion, deposits, and wear in air-cooled piston aircraft engines.

Piston aircraft engines operate under extreme temperatures, intermittent use, and long service lives, so small improvements in lubrication chemistry translate into meaningful reductions in maintenance risk and cost. CamGuard is blended to work with aviation-grade engine oils to protect cam lobes, lifters, cylinder walls, rings and valve train components by minimizing corrosive attack and deposit formation that lead to premature wear. Aircraft owners and maintenance technicians commonly see lower wear-metal readings on oil analysis when CamGuard is used as directed.

How does CamGuard help protect camshafts and lifters?

CamGuard supplies corrosion inhibitors and anti-wear agents that form a protective boundary film on high-load contact surfaces. This film reduces metal-to-metal contact during startup and operation, limiting pitting, spalling and the scuffing that can follow periods of inactivity. Consistent use helps preserve component geometry and delays costly overhauls.

• Active multi-metal corrosion inhibitors to stop rust formation on idle engines
• Boundary anti-wear chemistry for cam lobes and lifter faces
• Maintains lubrication film during cold or dry starts

Will CamGuard reduce deposit buildup and improve ring and valve performance?

Yes — CamGuard’s formulation addresses deposit precursors so combustion and oil-related residues form more slowly. Cleaner surfaces reduce the likelihood of sticky rings and valve sticking that compromise compression and efficiency. That means more consistent engine performance between inspections.

• Helps limit varnish and lacquer precursors on critical surfaces
• Reduces tendency for rings and valves to adhere from deposits
• Supports more stable compression and oil analysis results

How does CamGuard affect maintenance intervals and oil analysis readings?

CamGuard is intended to complement routine oil change schedules and condition monitoring; it is not a replacement for established maintenance. When used properly, oil laboratory reports commonly show meaningful drops in wear-metal concentrations, indicating slower component degradation. That trend can translate to lower risk of unscheduled repairs and clearer decision-making from oil analysis data.

• Typical lab results show reduced wear metals in returned samples
• Supports more reliable trending from regular oil analysis
• Helps avoid premature overhauls caused by corrosion-related damage

How should I use CamGuard safely and effectively?

CamGuard is combined with the engine’s sump oil — follow the product dosing instructions and your aircraft manufacturer’s oil capacity guidance. Use at each oil change or per the additive dosing schedule recommended by MELARQT, and record the treatment in maintenance logs. Continue standard inspections and oil analysis; additive use complements, but does not replace, normal maintenance practices.

• Add specified dose to warm oil or at oil change per label directions
• Log additive use for maintenance records and oil analysis interpretation
• Maintain standard inspection, filter change and sampling routines

Who is this for? Aircraft owners, flying clubs, and maintenance shops that operate or service air-cooled piston engines and want to reduce corrosion and wear risk will benefit from MELARQT CamGuard. It is particularly useful for aircraft that sit idle for extended periods, are flown in corrosive environments, or where owners seek clearer oil-analysis trends and lower long-term maintenance costs. CamGuard is formulated to supplement aviation engine oils and is intended for use within the parameters set by your engine manufacturer and maintenance provider.