Re: {Chrysler 300} Best oil for '61 413

[Robert Hayen <rbrthayen@xxxxxxxxx>]

There is only one oil  for the old  big block engines  with a flat tappet cam .   20w - 50  VR  Valvoline ....

On Thu, May 7, 2026 at 11:27 AM michael johnson <mikeljgt350@xxxxxxxxx> wrote:

I use that oil for all my vintage engines. And have for years.

On Thu, May 7, 2026 at 11:23 AM John Nowosacki <jsnowosacki@xxxxxxxxx> wrote:

I use Valvoline VR-1 Hi Zinc racing oil in 20-w-50 in both my 413 G and my 440 Hurst here in TX.

On Thu, May 7, 2026 at 11:42 AM mguarneri via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:

Just got back north for the spring/summer/fall and want to change the oil in my G.  However time has a hold on me and I can't recall what oil viscosity to use (normal outside temp I run is 55-90 degrees), and regular or synthetic.

 

I promise to write it down this time!....thanks...John 

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