3000rmp or 4000rmp

mr kilmer driving in highway for 1 hour in steady speed 4000rmp or 3000rmp
will hurt anything?

mr kilmer driving in highway for couplehour in steady speed 4000rmp or 3000rmp
in gear 4 or 5 automatic

for cleaning

will hurt anything? 2014 toyota 2.5L i4 automatic

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ScottyKilmer
ScottyKilmer

Editor

no, and it's called an "Italian Tune Up" which can clean things out

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