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Jul 21st, 2025 | | | | Joined: Aug 2011 Posts: 33 New Guy | | New Guy Joined: Aug 2011 Posts: 33 | I am about to change all of the fluids in my new truck and I was wondering. What sort of fluids do you use for your trucks? Oil? Transmission? Breaks? Thanks for your help. | | | | | Joined: May 2009 Posts: 117 Shop Shark | | Shop Shark Joined: May 2009 Posts: 117 | dw,
i have a 66 chevy c/60 with a 366 cid big block i use:
oil : 10w30 or 10w40
manual tranny: 80w90 gear oil
brakes: dot3 brake fluid
hope that helps.
Last edited by Alex an Mader; 08/22/2011 4:42 AM.
| | | | | Joined: Aug 2011 Posts: 33 New Guy | | New Guy Joined: Aug 2011 Posts: 33 | That's what I need to know. Thanks
| | | | | Joined: Jan 2011 Posts: 32 New Guy | | New Guy Joined: Jan 2011 Posts: 32 | I have a 1949. I run 90w in trans and rear, 30W Non-Detergent in engine, and DOT 3 in brakes. Never run anything less than 15W-40 in my '69 or '90 trucks as this was advise from my local GM mechanic so I feel 30W is fine. Also running lead additive in fuel. Just my 2 cents
1949 1.5 Ton 4400, 1969 c10, 1989 c1500, 1990 K2500, 2010 C1500 Crew
| | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | Save your money with the lead additive. Under normal use the fuel today will be just fine. Don't make the mistake of putting to thick of motor oil in the engine, with the splash oiling thinner is better than thicker. | | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 |
What year truck?
What engine (and year)?
What transmission/year?
| | | | | Joined: Jan 2011 Posts: 32 New Guy | | New Guy Joined: Jan 2011 Posts: 32 | Sorry, forgot to add that the engine in my 1949 is now a high pressure 235 out of a mid 50's truck.
1949 1.5 Ton 4400, 1969 c10, 1989 c1500, 1990 K2500, 2010 C1500 Crew
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