|Mobil 1 & Red Line Specifications (long) (archive)|
Posted by XTech on September 29, 1998 at 15:49:11:
In Reply to: So, 15W50 or 10W40? posted by PJay on September 29, 1998 at 12:59:26:
It seems Mobil recommends 15W-50, while Red Line
recommends 10W-40 or 15W-50 depending on application. I went with Mobil 1 15W-50.
Mobil 1 Formula 0W-30, Mobil 1 Formula 5W-30 and Mobil 1 Formula 10W-30 can be used anywhere an SAE 0W-30, 5W-30, 10W-30,10W-40, 5W,, 10W, 20W, 20 or 30 grade viscosity is recommended. Mobil 1 Formula 15W-50 can be used where SAE 15W-40, 15W-50, 20W-50, 15W, 20W, 20, 30, 40, or 50 are required.
Mobil 1 Formula 0W-30, Mobil 1 Formula 5W-30 and Mobil 1 Formula 10W-30 improve fuel economy, exceeding the newest fuel efficiency rating, Energy Conserving. Their cold-temperature
performance is superior to SAE 5W-30, 10W-30, 10W-40 oils, easing the load on battery-started
engines, especially at temperatures below -18° C (0° F).
Mobil 1 Formula 15W-50 is especially suitable for high-performance cars, particularly hot-running
or heavily loaded vehicles and special high-tech imports.
Mobil 1 Formula 0W-30, Mobil 1 Formula 5W-30 and Mobil 1 Formula 10W-30:
- Flow at 54° C (-65° F); pump at temperatures lower than similar SAE viscosity-grade
- Save gasoline, exceed newest Energy Conserving Requirements.
Mobil 1 Formula 15W-50:
- Flows at -48° C (-55° F), pumps at temperatures as low as many conventional SAE 5W-30 oils.
- Provides superior high-temperature protection for high-performance and high-revving cars.
Red Line 5W30: Provides the quickest starts and fastest oil pressure rise. Will reduce turbo lag
and provides more power and best economy in an engine in good condition. Replacement for OE
factory-fill oils in passenger cars and most light trucks. Thicker oil film at operating temperature than a petroleum 10W-40. Best choice for engines operated in extreme cold weather.
Red Line 10W30: Best all-weather viscosity grade for gasoline engines in cars and light trucks that
are driven on the street on a daily basis. Reduces turbo lag and provides more power and economy
while providing thicker bearing oil films at operating temperature than a petroleum 10W-40. Best all-round, synthetic oil for stock or slightly modified engines in high- performance cars that are street-driven. Best choice to replace a 5W-30 or 10W-30, petroleum-based or other-brand synthetic oil if maximum durability is preferred. Acceptable for engines that are occasionally operated in extreme cold weather.
Red Line 10W40: Best choice for engines that typically run high oil temperature. Best choice for engines in daily drivers operated in very hot weather on a regular basis. Best choice for medium and heavy duty gasoline engines in trucks. Best choice for high-performance engines that see street as well as frequent racetrack duty. Thicker oil film at operating temperature than a petro-based 20W-50.
Red Line 15W50 & 20W50: The ultimate high-temperature protection in Red Line engine oils recommended for street use. Good for engines that regularly run very high oil temperatures. Best for engines that run large clearances such as air-cooled engines or large-displacement, all-out racing engines that see occasional street use. Provides 25% more viscosity in bearings than petroleum 20W-50s. Not recommended for use in cold climates where temperatures are at or below 10°F or -12°C. Not recommended for street use in production engines that see sustained oil temperatures below 225°F. Those engines should use Red Line 10W-30 or 10W-40.