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As the engine wears, the bearing clearances become a little larger, REQUIRING that you use a higher viscosity oil to maintain oil pressure. If using the recommended oil viscosity results in low oil pressure, you should certainly switch to the 10W40.
HOWEVER, if the engine can maintain oil pressure using the recommended oil viscosity, you will get better economy and the engine will perform better.
What else can I help you with?
Where is the inertia switch for a Saturn L300?
where is the inertia switch for a saturn L300 2005
What transmission fluid to use in l300 2001 Saturn How much to use?
The correct transmission fluid to use in an L300 Saturn is Dexron III. The capacity for a complete change is about 6.75 quarts.
What is the torque spec for the cylinder head on a 2003 Saturn L300?
what the torque spec for the cylinder head on a 2003 saturn L300
Oil Capacity Saturn L300?
The L300 V6 holds 5 quarts of oil.
How do you replace fuel pump on a 2004 Saturn L300?
carbertor
What motor oil is used for a 2002 Saturn l300?
5w15
How do you change crankshaft sensor in a 2001 Saturn sl?
were is crankshaft sensor located in 2001 Saturn l300
What is the stock tire size for 2001 Saturn L300?
P205/65r15
Why does theService light and security light come on at the same time in your 2002 L300 Saturn?
My 2002 Saturn L300 was doing this also, it was the BCM (Body Control Module). Cost about $600 to fix at the dealership
What type of refrigerant does a Saturn L300 use?
All model years use R134a - the car entered production in 1999, well after R134a had become mandatory.
How do you program a keyless remote for a 2003 Saturn L300?
The Saturn dealership did all three of mine free of charge.
where inertia switch for saturn L300 2005?
The 2005 Saturn L300 does not have an inertia switch ¹. Instead, here are the locations of the fuses and relays in the Saturn L300 ²: Cigar lighter (power outlet) fuses in the engine compartment Fuse boxes under the instrument panel on the right and left side of the vehicle Engine compartment fuse box
