Engine 4.2L I6 258 Oil Capacity?

[jzak]

Could someone offer a definitive answer on the factory recommended oil capacity for a AMC 258 i6 / 4.2l AMC 258 i6 / 4.2l engine? I've gotten conflicting info. Some say it's 5 quarts, while others say 6. If I put in 5 quarts, the dipstick level sits right below the "FULL" mark. but If I put in 6 quarts, it s just above it. I always thought its 5 quarts. Thanks for the help!

 

[Manic Mechanic]

Depends on the oil pan and filter. Should be 6 but I've seen some only take 5

 

[jzak]

Depends on the oil pan and filter. Should be 6 but I've seen some only take 5

Thanks bud! So If 5 quarts is putting my dipstick level at the full mark, then that's my engine capacity.

 

[Belizean]

Thanks bud! So If 5 quarts is putting my dipstick level at the full mark, then that's my engine capacity.

Does the oil pan have a skid plate on the bottom of it ?

 

[jzak]

Does the oil pan have a skid plate on the bottom of it ?

There's a small skid plate at the lowest part of the oil pan where the drain plug is.

 

[WHATROAD]

The owners manual that came with my 84 CJ7 when new, says the AMC 258 i6 / 4.2l CID Engine ( includes 1 quart for filter change) is 6 quarts

 

[Belizean]

The owners manual that came with my 84 CJ7 when new, says the AMC 258 i6 / 4.2l CID Engine ( includes 1 quart for filter change) is 6 quarts

WR I was wondering what filter you use ? I’ve found several that fit the AMC 258 i6 / 4.2l , Most are short and small and couldn’t even hold 1/2 a quart. Most look like maybe a 1/3 of a qt.

 

[WHATROAD]

I've since given up on the AMC 258 i6 / 4.2l and dropped a AMC 304 into my 84. I use K&N filters normal size and they hold about a quart. I am leaning towards a NAPA gold.

 

[Manic Mechanic]

I run a k&n on my AMC 258 i6 / 4.2l and it holds 6 quarts with the pan that has the skid plate built in