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Old 01-21-2008, 01:28 PM
G.A.S. G.A.S. is offline
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Re: How many miles on 5.7L/4L60?

Noone believes this but who cares.
I have a 1988 GMC, 5.7, 1/2 ton, 4X4 with 502thousand as of this last fall.
This engine still does not leak a drop of oil nor burn any.
The trans is original with about 4 filter and fluid changes.
I use the Mobile1 synthetic 5w-30 in the engine, tune up kit, (plugs,cap,rotor and wires) every summer. I have been through 6 front and 3 rear brake jobs sence new. New brake lines,calipers and W/C's once. 8 fuel pumps, ( dont waist your money on aftermarket, Buy O.E.M. ). 2 exhaust systems, and I think on this truck 5 sets of tires.
I would say that 80% of these miles are highway.
The old gal still gets 17-20 in the city and 25-27 on the highway.
I was under it this last summer and the frame is starting to look like this will be its last winter and will get put down for the count.
It will be sad to see it crushed but it has served me well.
Now I am courious about this post to see who can come close to that.
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