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427carl


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Do you favor certain Oil viscosity
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5W30 10W30  whats your favorite and why?    I used 10W30 Synthetic



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4SPEED427


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I stick with 10W30. I found that 5W30 always gives me the runs.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars
65 SD L79


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the Shelby uses 5 -50 syn and the Thunderbird 5-20 wt, Typhoon 10-30 mobil 1. I stick to the factory specs



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JerryA


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5-30 synthetic in the new vehicles. The Beaumont gets 10-30 Brad Penn partial synthetic



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Pontiacanada


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10w 30 Castrol Fossil Oil in the '64

 



-- Edited by Pontiacanada on Friday 16th of September 2011 11:35:57 AM

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57poncho


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10-30 what ever is the cheapest. the way I see it I change the oil about every 1000 KM if not more often so I don't feel a need to go with the high end and synthedics.



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1957 Pathfinder deluxe 4 door wagon
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dualquadpete


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10-40 in the 64 Catalina, as long as it's got "ZINC" in it!!! if not 10-30 with "additive"!!!!!!!

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Some times I wake up GRUMPY, but today I let her sleep in    !!!!!!!! BLACKSTOCK Ont.
427carl


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427carl wrote:

5W30 10W30  whats your favorite and why?    I used 10W30 Synthetic

         I understand using factory recommended oils   Why is 10W-30  sorta of standard  and why os 5-40 5-50 better   is it temperatures?



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65post


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I have always run 15W40 Diesel in all my older cars.

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jlysholm


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...Always used 15W-40 Royal Purple.  I was told that grade was ideal for high temp summer driving conditions in the Okanagan. 



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Elroy


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I use Petro-Canada Duron 5W40 full synthetic in most everything including the lawn mower exc new stuff that requires 5w30 full syn

Reason, 5 weight when cold, as 90% of your engine wear is within the first 2 minutes of warmup, 40 weight when at operating temp for those high rpm blasts and that 40 weight film strength might keep the scoring down on the pistony skirts ! 15W40 works too and is much cheaper ... my 2bits



-- Edited by Elroy on Saturday 17th of September 2011 07:35:48 PM



-- Edited by Elroy on Saturday 17th of September 2011 07:37:06 PM

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