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I have done 3 fill ups.
18mpg on 60% highway driving the speed limit.
16mpg driving around town.
16.5mpg mostly driving around town with some highway.
I pull a spark plug too see what they looked like.
Well they were the wrong ones, about one heat range too hot, champion 7318, I'll put the correct ones in. Either double platinum or iridiums.
Also thinking about upgrading injectors, the engine came with single hole EV1 22lb/hr injectors.
There are 4 hole upgrade injectors, also 22lb/hr Bosch #0280155784.
Replacing old EV1 injectors with new 4 hole injectors is good way to get +1mpg.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
Last edited by oil pan 4; 09-04-2023 at 09:41 PM..
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