I have a 1987 300sdl.
Does anyone know if there's a bigger fuel tank for this model?
Any options?

Ahh........the vehicle already goes 600 miles on a tank. How much further do you need?

I'm getting around 450 on a tank. I would be very happy with 600.

Any suggestions as to what to check regarding my low number.

I'm new to the diesel world. new as in two weeks.

Highway driving helps.

Keeping the speed to 68 mph helps.

Keeping the tires at 35 psi helps.

Avoiding the brakes really helps (plan ahead and coast).

I believe PowerService helps but can't prove it.

Ignoring the fuel gauge when it first touches the "E" line also helps............there's another three gallons in there.

IF your gauge works "properly" I speak from experience; however, running out in the garage was just a coincidence.

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

hitting the highway next weekend.
Washington DC to Charleston SC (525 miles).
I'll check it out then.

Thanks guys

"hitting the highway next weekend.
Washington DC to Charleston SC (525 miles).
I'll check it out then."

Ditto on the 68. I have a problem keeping it under 75. I useit as a daily driver (64 miles) back and forth straight highway 530 in the morning no traffic............

Seriously though before my cruise quit i did a week at 65 both ways and got 29.5 mpg on that tank

You didn't happen to fill it up when it was out.........??

I'd really like to know how much is usable.

Carry 2 x 5 gallons jerry cans. They fit nicely on the 2 sides of the trunk. That will increase you range by approx 300 miles. I get on average 900+ miles if I do that. Even if a bigger fuel tank is available, I really cannot see the justification to spend the money and labor to change out the old one.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

70 - 75 mph, an easy 600 miles per tank. At 80 - 85 for 35% of the time and 70 - 80 for 65% of the time, the mileage drops to about 500 per tank. Tires at 33-34 psi.

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Paul 1987 300 SDL; 2000 ML; '69 MGB; '68 VW Fastback

I really, really want an SDL. As much or more than I want a 190D. The significant other says I need to get rid of at least one of the current crop before I can get another vehicle. In my defense, one of the non-runners planted in the yard isn't mine, I'm just holding on to it for a buddy....

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1983 300SD 467,000 km - 473 champagnermetallic

location: 34°5' N 106°53' W (Socorro NM, USA)