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Username Post: Oil        (Topic#349690)
ejw71 
Senior Member
Posts: 411

Loc: Bella Vista, AR
Reg: 01-19-01
02-16-18 10:17 AM - Post#2724591    

My 350, 10,000 miles, runs 10w30 oil. Can I now replace it with synectic oil? Tks, Ed



 




65_Impala 
Very Senior Member
Posts: 4070

Reg: 12-29-02
02-16-18 10:47 AM - Post#2724597    
    In response to ejw71

Yes, you can change back and forth whenever you want.



 
IgnitionMan 
Valued Contributor
Posts: 3412

Reg: 04-15-05
02-16-18 03:40 PM - Post#2724621    
    In response to ejw71

From my hands on experience, NO, stick with the oil you started with.

It really comes down to the design of the components that are used within the engine, year it was manufactured. Later engines with hydraulic roller cams and induction hardened crank throws, better bearings, can use synthetics, earlier engines made with older metals, gaskets, NOT recommended.

When the engine starts to leak oil from all the gaskets after switching to synthetics, you will know for sure you shouldn't have.



 
62chevy427 
"12th Year" Silver Supporting Member
Posts: 2126
62chevy427
Loc: laurens sc
Reg: 04-13-06
02-16-18 05:21 PM - Post#2724627    
    In response to IgnitionMan

i'm with ignition man. stick with conventional oil.
i change mine every 2000 miles,regardless of time and never have had a problem in 40+ years.

56 bel air ((since 2002)
62 impala ss (since 1965)
65 el camino (since 1969)
66 nova (since 1987)
67 malibu convertible (since 1981)
72 el camino ss454 (since 1985)
83 gmc 4wd (since 1991)
95 impala (new)
14 camaro (new)


 




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