New Seals - Switching to Synthetic

[ThirdeYe]

I have a leaky cam plug on my car right now, and i'm planning on replacing it, along with the o-ring on the distributor, the spark plug gaskets, and the valve cover gasket at the same time as a preventative measure for when I make the switch to Synthetic soon. Is it safe to fill the motor with synthetic directly after replacing the seals? (I'm going to be using Amsoil ASL 5w30) I was also planning on using some Amsoil Engine Flush before I put the Synthetic in. My main concern is the new seals and if there's any precautions I should take before running the flush and the new synthetic oil for the first time.

 

[Merkava_4]

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Is it safe to fill the motor with synthetic directly after replacing the seals?

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I don't see why not.

 

[Blue99]

Actually, the base oils in a fully synthetic PAO formulation, like Amsoil, have little effect on seals. An additive is required to generate minimum seal swell and additive soluability.

Be confident that Amsoil is meeting the API SM requirements for seal compatibility, which limit the chemical effects of a motor oil on seal and gasket materials.

Also keep in mind that over 20 new car models are hitting the showroom floor with synthetic as the factory fill.

 

[mgm13]

I don't think it will make any difference to the sparkplug gaskets!

Big Mike

 

[JohnBrowning]

The new seals will be fine!! The greater concern is the old seals. I would definately do a flush first!!! You might consider useing something like MAxlife synthetic if the car is old or highmilage before going to a quality synthetic like Amsoil!!! No sense finding out you have bad seals and leaking to expensive and excellent for long change interval Amsoil on to the ground!!!