Fresh oil

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DoubleDingo

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1981
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81-C20 Silverado Camper Special-TH400-4.10s
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Carb'ed Vortec 350
It sure does run better. I have noticed it.

And I enjoy some concrete time, the flat surface helps reset my back and neck. There will come a day, though, when I won't want to lay on the concrete.
 

fast 99

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Brian
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81,85
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K20
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350
Doesn't happen much today with computer controls but carbed vehicles can have diluted oil from excess fuel. Engine operation may change after a service. Actually, after doing a carb o-haul we needed to do it before sending owner to emissions testing. Could and did fail from dirty/diluted oil alone.
 

squaredeal91

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Cave junction Oregon
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Greg bush
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1991 SB
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K30
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5.9 Cummins 12 valve
I know for a fact our Suburban runs better after an oil change.
 

CountKrunk

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ATL
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Count
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1984
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C20 Custom Deluxe 3+3
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v8 350
I changed the trans oil on my 2016 6 sp camry and i swear to god it seemed like it shifted smoother haha
 

Scott91370

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Burleson, Tx
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Scott
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Sierra1500
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No idea. I haven't driven it enough to need an oil change. :confused:
 

texasmike

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Conroe Texas
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Mike
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1984
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C10
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305
Scott, I'm not sure where Burleson is but if it's not too far from Conroe, I'd be happy to swing by from time to time and put some miles on your GMC.
 

DoubleDingo

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Jul 3, 2012
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Right where I am
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Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350

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