katoom400ExplorerOct 16, 2014From Tundra 5.7 to what 3/4 ton gas truck?My 5.7 Tundra has no problem pulling my ~7600lb trailer up just about an grade (4.30 gears), but because I am over my payload limits by at least 500lbs, and nothing else I'm thinking about dumpuing my...Show More
ib516Explorer IIOct 16, 2014The 5.7L Hemi recommends using 89 (mid grade), the 6.4L TRUCK Hemi only needs 87. Maybe you're confusing it with the SRT 6.4L?
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