I was at Autozone the other day and saw a few cans of stuff to the effect of "Compression in a Bottle"

"Uses high-shear polymers to seal piston rings, reducing blow-by and increasing compression. For use in all gasoline and diesel engines."

My engine has some blow-by...the stuff is supposed to get added to engine oil at any time.

What do you guys think about them?

I figured I'd ask here before I did something stupid.

'83 240D, 220k miles.

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to quote Thomas Tusser, a fool and his money are soon parted...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
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My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

You might do a regular internet search and see if any one else had good results with it.
I general I thank that anything that would thicken the oil (STP comes to mind) would tend to reduce blow by (but probagbly not the blow by comming from the exhaust valve stem area). a.k.a.: viscosity index improver. Probably less effective on diesels than gassers due to the diesels higher operating pressures.

Good stuff to plug up the oil galleries and damage the oil filter.

I have read many times that it works. but for it to work properly you must use oils that dont have friction reducers in them. they will keep the product from doing what it is supposed to do. I quote from another web site "if you use ordinary supermarket type oil and RESTORE you will see improvements in a worn engine in under 500 miles." Hope this can help.

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1981 300d

Its not going to replace missing metal.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

And lets not forget the under piston oil squirters!

[edit] just saw its a 240d but still.....

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1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

a general rule to live by if you own a mercedes W123/w126/w124/w115 diesel or any other mercedes

Only buy car wash and maybe oil from your mcparts store... other than that buy all essential parts from the dealership or a trusted parts man

See this thread: Rislone compression repair,anyone ever use it?

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'83 300DTurbo http://badges.fuelly.com/images/smallsig-us/318559.png

Broadband: more lies faster.

X2

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

I think I bought my battery from autozone though..I;m not shelling out 150$ for a white battery from Mercedes...

oh man agreed. I just replaced a white MB battery that was in my SD with an Interstate Mega-Tron thing $130.

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82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

I like the white battery.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Me too.

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-diesel is not just a fuel, its a way of life-
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'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

y'all racist.

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-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)