I am considering buying 100 gallons but need to get summer diesel to get the most of the purchase, input please.

If the fuel is coming from a non-temperature compensated pump, you'll get the most fuel during the colder months.

but winter diesel is formulated --you dont get as near noticable mileage

Is it reformulated in your area? Ask a trucker.

I know it is, it would be in AZ or Socal too, it is everywhere AFAIK.

It sucks, I moved to southern California expecting to get better diesel, but nope not at al.

I would call a local petroleum distributor for a purchase of that kind. They would be better able to suit your needs for such a large amount of fuel.

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-Typos courtesy of my mobile phone.

http://www.tpub.com/content/construction/14264/css/14264_159.htm

This should help............

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I choose to be happy, even when the Mercedes is being awkward, lol

I don't know about everywhere. If the temperatures don't drop below 20 deg it's not needed. But since it lowers fuel mileage, the oil cos might just make it everywhere. Ask a trucker at truck stop.

Seems like this would be a question better asked to the company you're going to get fuel from. Every station and company probably switches fuels at different times.

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100 gal is hardly a large bulk order. we get around 5000 gal at a time & are given 5% ~10% discount. Every little bit helps!
Make sure you comply with any fuel transport safety requirements.
Continually we have issues with "work experience kids" at fuel suppliers, gas stations & government depts. For some reason they want the rules for petrol to apply to diesel. It often takes a lot of explaining to them that diesel is not a flammable liquid, its a combustible liquid. There is a big difference.
If you are storing diesel, be careful of moisture, we drain our tanks regularly, including the cars. The lasts 1/2 a gal often has some water in it. Best to have some sort of water separation.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

Most local small distributors will charge more than what you can by it for at a regular station. Our marina pays more for gas and diesel than it can be bought for at the local pumps. Would be nice if they didn't dye off road diesel.