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Old 07-05-2012, 10:13 AM   #187
TboneZX3
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Join Date: Oct 2011
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What I Drive: '01 ZX3, '12 SE Sport

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Quote:
Originally Posted by Miller88 View Post
There's a few reasons why it's able to go 7500-10k miles. First is, it has a larger oil capacity per liter of engine than my Jeep. It's oil capacity is 5 quarts, my Jeep's is 6 ... it has half the engine displacement.

As a side note... If you're not already using a larger filter for higher capacity on your 4.0, you can use the filter for Ford small blocks. It cross-references to Motorcraft FL-1A. It looks like you might already be doing this since you mention 6 quarts, but I thought it was worth a mention...
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