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Mr 5 0 · 03-19-2002, 05:40 PM

500 miles is a reasonable break-in but stay out of the red on the tach (don't mis-shift) at all costs.

I didn't beat on my then-brand-new '90 Mustang 5.0 until it had about 700 miles on it and it's still running great at 115,000.

Change the oil and filter again at 1000 miles, then every 2 or 3 thousand afterward. Invest in a magnetic drain plug, too. You'll be surprised how much metal you'll find on it in the first few changes.

03-19-2002, 05:40 PM	#9
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	Breaking it in 500 miles is a reasonable break-in but stay out of the red on the tach (don't mis-shift) at all costs. I didn't beat on my then-brand-new '90 Mustang 5.0 until it had about 700 miles on it and it's still running great at 115,000. Change the oil and filter again at 1000 miles, then every 2 or 3 thousand afterward. Invest in a magnetic drain plug, too. You'll be surprised how much metal you'll find on it in the first few changes.