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We have run into a few problems with the forum upgrade.

Your posts will still be accepted and moderated but we may not be able to respond right away as our moderators are unable to post.

Really sorry about the trouble. We have a support ticket in and hopefully the problem will be fixed soon.

Also, there are 231 cubic inches per gallon.
So, if we know there are 231 cubic inches per gallon, and you have 11,250 cubic inches, we can calculate as follows;

(11,250 cubic inches )/ 231(cubic inches per gallon) = 48.7 gallons total

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