Can 5w30 be used in place of 5w40 oil?

How do you stop air bag light from flashing on a Mercury Capri? Which 4 plugs on a 97 ford ranger with a 2.3 8 plugs are the combustion plugs? Is Brendan Britto the son of Romero Britto? Where do you put bulb grease? Where is the battery located on a 2002 ski doo grand touring? Fuse for the power seat on the buick rendezvous 2004? How do you cool overheating car brakes? What tools are needed to change the crankshaft pulley on a 1987 b2000? What is the oil capacity for a 361 engine? How do you replace a bulb in the headlight mount of a 94' Toyota Corolla? What causes a loud humming in the front end of your car while accelerating? Where is location of 1999 Prizm cabin air filter? How do you fit a britax asis child car seat? Is the fuel pressure regulator the same as the fuel pump? Why does vauxhall combo 1.7 di turbo keep blowing? How do you change an alternator belt on a 2003 Mitsubishi eclipse gt? Where can you find a fuse layout for a 1997 Ford Crown Victoria? How do you reset the check engine light on a 2007 Toyota Corolla? What is the firing order for 1991 B2600 truck? How do you replace pulley on simplicity mower?