The W30 package, offered by Oldsmobile in 1970, was a high-performance option for the Oldsmobile 442 muscle car. It included a powerful 455 cubic inch V8 engine, upgraded suspension, and enhanced braking systems. Designed to boost performance, it also featured a unique cold air intake system and specific engine tuning, making it a sought-after option among muscle car enthusiasts. The W30 package significantly enhanced the car's speed and handling, solidifying the 442's reputation in the performance car market.
The alx w30 is bugged, but it can still be used
gf-4 sae 10-w30 or 5-w30
w40
Horsepower rating is 370 brake horsepower @5200 rpm. Since the regular 442 in 1970 had 365 hp @ 5000 rpm, it is believed the W30 was underated at 370 and is more like 420 bhp. Torque rating for the W30 is 500 lb ft @ 3600 and the non W30 is 500 lb ft @ 3200.
if it is below -18 or above 38 Celsius... you need 5 W30 if it in between you need 10 W30
5-w30
5 w30
10 w30
10 W30 is heaver
v38
5-w30
Many lube shops are now using 5 W30. 10 W30 still works well too. Just ask the folks at your oil change shop what they recommend.