Porsche Engine Oil Change Kit (20W-50) - Liqui Moly/Mahle 539010KT

For all 356, 914 and 911 models up to the 2.7-liter G-Model, Porsche recommends the multi-grade version with a viscosity of 20W-50. Back in the 1950s, 1960s and 1970s, engines were built with much more generous tolerances than today, which is why the viscosity of an oil must be low enough for it to penetrate into all areas of the engine as quickly and uniformly as possible during cold starts. At the same time, however, its viscosity must not be so low that a stable lubricating film is no longer present when the engine heats up.

Classic Motoroil SAE 20W-50 HD has been specially developed and formulated to meet the typical requirements of European classic engines with a oil filter, built in the time period beginning of the 1940's up to the end of the 1960's.

Specially suitable for European classic vehicles with oil filter elements from model year 1940 in which a mildly alloyed lubricant with wit the specifications listed below are required.

Properties

• Excellent Cleaning Effect
• High Lubrication Reliability
• High Wear Resistance
• Low Evaporation Loss
• Outstanding Corrosion Protection
• Suitable for Classic Motorcycles W/ Oil Filter

Specifications & Approvals

• API SC
• API SD
• API SE
• API CC

Technical Data

• SAE Class 20W-50 SAE J300
• Density at 59 Degrees 0.885 g/cm3 DIN 51757
• Viscosity at 104 Degrees F - 153mm 2/s ASTM D 7042-04
• Viscosity at 212 Degrees F - 17.5mm 2/s ASTM D 7042-04
• Viscosity at -4 Degrees F - < 60000 mPas ASTM D5293
• Viscosity at 5 Degrees F <=9500 mPas ASTM D5293
• Viscosity Index 125 DIN ISO 2909
• HTHS at 302 Degrees F - >= 3.7mPas AST< D5481
• Pour Point - 22 Degrees F - -22 Degrees F DIN ISO 3016
• Evaporation Loss (Noack) - 5.5% CEC-L-40-A-93
• Flash Point - 464 Degrees F DIN ISO 2592
• Total Base Number - 6.0 mg KOH/g DIN ISO 3771
• Sulfate Ash - 0.65 g/100g DIN 51575
• Color Number (ASTM) - L4.0 DIN ISO 2049

Engine longevity & optimal performance

It's recommended to use an Engine Flush by Liqui Moly prior to performing an oil change to dissolve sludge and engine deposits. Others have also purchased quality maintenance additives which you can find here.