How much money in interest would I pay for the first six months on a 36 month

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loan at 2.9%? Assuming the payments are $300-$350 per month I need to know how much this loan will cost me in interest versus a 0% loan. I plan on paying off the entire loan after 6 months. This is an auto loan. Honda has 0% Chevy has 2.9% Loan amount financed is $14,000