300 SD. I assume it is 1.5 mm threading like everything else I've encountered on the car. The plug won't come out and feels like it is cross-threaded. Before I touch it again, I want to know I've got the right tap and a new plug.

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Growth for the sake of growth is the ideology of the cancer cell. -- Edward Abbey

1984 300SD: Hilda the veggie vundercar

12x1.5mm

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1984 300D / The only Benz I have

Completed weekend projects

1. R/R front crankshaft seal
2. R/R nearly the whole vacuum system
3. Converted to WVO www.greasemachine.com
4. Upgraded to electric power locks
5. Upgraded and rewired stereo/amp/speakers
6. Installed 2.88 differential

Thanks!

__________________
Growth for the sake of growth is the ideology of the cancer cell. -- Edward Abbey

1984 300SD: Hilda the veggie vundercar

1984 300d Turbo
**************.com Have New Oil Pan With Drain Plug And Gaskit
$68.50 Diy Use A 5 Mm Allen On Drill To Remove Allen Bolts Install
By Hand Only Or Pan Will Leak.

http://www.cgenterprises.com/thread_chasers.htm

http://www.cgenterprises.com/drain_plugs_metric.htm

http://www.magneticdrainplugs.com/metric.htm

No interest. Inexpensive oil changing hardware.

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)