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Old 04-16-2011, 12:17 PM
RockaRollaTruck RockaRollaTruck is offline
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Default Sythetic or Not?

Should i use synthetic 5w-20 oil or regular 5w-20 , and what kind?
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Old 04-16-2011, 02:57 PM
Rango88 Rango88 is offline
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Default Re: Sythetic or Not?

Quote:
Originally Posted by RockaRollaTruck View Post
Should i use synthetic 5w-20 oil or regular 5w-20 , and what kind?
I use Castrol Syntec 10w30 with a lucas blend, it works great
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Old 04-16-2011, 03:42 PM
Clinton Clinton is offline
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Default Re: Sythetic or Not?

I use Valvoline full synthetic 5w30, Good stuff for me!
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Old 04-16-2011, 03:43 PM
matt224 matt224 is offline
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Default Re: Sythetic or Not?

Synthetic all the way. Conventional can;t compare any more
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Old 04-16-2011, 04:43 PM
mickblock mickblock is offline
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Default Re: Sythetic or Not?

Valvoline full synthetic here also.

The big difference with synthetic is that it does not require additives to flow at it's viscosity rating. Conventional oil always has. Nothing wrong with using additives to modify viscosity charactoristics across the required temp ranges other than the fact that those additives are what break down.
This is just specualation on my part but I think the reason that 3,000 miles oil changes exist is either because
1) The reason stated above
2) Engines were not required to be nearly as clean burning as they are today. The crankcase accumulated alot more disolved solids and acidic combustion waste.
3) To sell more oil.
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