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The Intek & Power Built vertical shaft 11.5 h.p. engines total capacity is 48 ounces. Drain the oil and add 40 ounces unless it has an oil filter, which in that case add 4 more ounces. Start the engine and let run for 30 seconds. Shut down, wait 30 minutes, and check the oil level on the dipstick. Add as necessary to reach the full mark. Do not add 48 ounces in the beginning as some of the oil will be left in the oil sump. Do not overfill.

The horizontal shaft engine total capacity is 28, 32, or 48 depending on the exact model. The Clean Tek is 28 ounces, the Vanguard is 32 ounces, and the I/C Plus is 48 ounces.

Any engine equipped with an oil filter add 4 more ounces to the capacity.

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