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Old 09-23-2010 | 09:24 AM
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Sport_Pilot
 
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From: Acworth, GA
Default RE: Buying Castor - which type?

ORIGINAL: TimBle

The pharmacy grade of castor is murder to a ringed engine or a 4stroke. Build up of varnish can lead to engine failure.
Of course views will remain polarised about the use of this grade.

ABC type engines don't really care what lube oil you use as long as you use enough of it. Of course good synthetics and suitable castor work best in these.
Sorry but the pharmacy castor is the same as the AA castor that the better fuel manufactures use, but better filtered and tested for toxins.
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