Stirlings HD Marine TP 1230. This Trunk Piston Engine Oil (TPEO) for marine applications, based on top quality mineral base oils and outstanding additives (validated by OEMs), is able to:
- neutralize acids to prevent corrosive wear
 - handle contaminations (like asphaltene), prevent deposit formation and control sludge by keeping contaminants suspended
 - resist thermal and oxidative stress
 - handle contamination with water
 - provide sufficient load carrying capacity to protect engine parts under high load.