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#28287 07/08/2002 4:06 AM | Joined: Jul 2002 Posts: 188 Member | | Member Joined: Jul 2002 Posts: 188 | just bought a 50 Chevy 3/4 ton. Has a 235 with no oil filter so I presume a pre 58 mtr. What oil to use? straight weight non-detergent or multi-vis detergent? clean out old oil with some diesel or engine flush or leave alone and just change? tranny and rear-end 90 gear lube ok? do they need to be flushed somehow? | | |
#28288 07/08/2002 3:07 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | I'm running 20W-50 detergent in my 235. You can use the detergent oil if you change it regularly.
For gear lube, use either straight 90 or a multi-vis in the 90 range. It won't hurt to change the gear lube in the tranny and rear end.
Also, clean the breather on the differential housing. It's on the driver's side on top and is threaded. If the breather is plugged, expanding vapor can blow out an oil seal.
Fred
52 3600
69 C-10
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