Hello,

I have a 240D with 265000miles and a 5 year old battery. I've been suprised at how easy it has started in 15-20 degree weather recently. This was with number 2 diesel with powerservice added. No block heater. I'm curious about the engine compression and wondering if I can conclude from the above that it is likely satisfactory. Appreciate any thoughts.

Thanks,

Kevin

If it starts in 15-20 degree weather, I would have to conclude that it is satisfactory.....
Nice.

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

A 5 year old battery???
That is amazing, but count on the battery failing during sub zero starts.
If it continues to start easy, below 10F, I would call that superior engine compression for it's age.

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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

https://www.boldegoist.com/

That's great news. My wrecked '85 cranked right up at 8 degrees F, about the coldest it ever gets here. That was also a night that I forgot to plug her in. I just let her glow about fifteen seconds longer than the light and she fired up with less than five seconds of cranking. I'm glad the engine is still intact. She had some kind of performance issue where she was a bit slow on the 0-60 time but I also took the easy starting as a sign of good compression. It never failed to start on me. My brother told me his refused to start on him one morning but I took a look under the hood and his battery is scary, old with lots of corrosion. He's mechanically handicapped and was very pleased when I tightened up his throttle linkage and turned up his alda. I know he wasn't nearly brave enough to do the valves so I'm hoping that plus the ancient battery is what caused it not to start. On the plus side I have a $200 parts car with a darn good engine in case I ever need to swap!

__________________
Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo

i agree. superior compression.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

definitely satisfactory. If it starts at 0F with a 5 year old battery/no block heater, then it's at least very good.

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'82 300SD - 361K mi - "Blue"

"Good judgement comes from experience. Experience comes from bad judgement."

listen, look, .........and duck.