Comments on: E Burnside & 12th, 1937

By: rod taylor

rod taylor — Sat, 22 Sep 2012 04:34:03 +0000

@Dan. Product contamination. I would guess that the day after the first lead was added to a tank of gas it started cross contaminating. Impossible to prevent at any reasonable cost and that continued until lead was all phased out. From too many sources not limited to pipelines, tank farms, vessels of every type, including ships,trucks,rail cars and you name it. And I’m not just talking about a little retain. Careless handling, human error and sometimes greed all play a part. Since we are importing refined from other countries you can use your own judgement about whether we are out of the woods now.

By: Dan Faulkner

Dan Faulkner — Fri, 21 Sep 2012 19:29:46 +0000

Tad: When unleaded showed up on the market in the 70s & 80s, it was a revival of an older practice. Gasoline is naturally unleaded, and was typically used that way until the late 1920s, when oil companies started adding tetraethyl lead. I own a 1926 car that was designed to run on unleaded.

As for what was in the pumps in 1937, I’ll defer to those who have memories of that era.

By: rod taylor

rod taylor — Fri, 21 Sep 2012 04:29:11 +0000

Oops. The evil one seems to have cast a transposition into my epistle. Pre-ignition . sorry pre not per

By: rod taylor

rod taylor — Fri, 21 Sep 2012 04:23:44 +0000

Three grades of octane commonly 88,92, 98 were sold with minor variation between brands, all leaded. What your car actually required depended on the engions compression ratio. The higher the compression ratio the higher the octane (tetra ethyl lead) level required to suppress per-ignition (knocking), Again all leaded. Aviation grades are all above 100 octane.

In practice the difference between actual need and perceived good presented the oil companies with some wonderful opportunity’s for creative marketing. And they still do. The most lucrative additive is always BS. The most beneficial additive is common sense
.
Marketing folks Marketing.

By: JimW

JimW — Fri, 21 Sep 2012 03:11:40 +0000

Ever found any pictures of North Central School at was at the NE corner of 12th & Burnside before Sandy was extended westward from 16th?

By: Tad

Tad — Thu, 20 Sep 2012 21:58:07 +0000

I didn’t think unleaded came on the scene until the 70/80s?

By: Dan Faulkner

Dan Faulkner — Thu, 20 Sep 2012 19:28:14 +0000

My guess is the three pumps are leaded, unleaded, and super (high octane). Tetraethyl lead wasn’t commonly added to gas until the late 1920s, so even in 1937, there might have been a need for unleaded to serve older cars.

By: Tad

Tad — Thu, 20 Sep 2012 18:17:10 +0000

So I see three pumps at each station, what were the three types of gas back then? Regular, super and ethyl?

By: Dave Brunker (@dbrunker)

Dave Brunker (@dbrunker) — Thu, 20 Sep 2012 16:38:56 +0000

It’s a little off topic but I just noticed a new hashtag on Twitter: #PDXHistory

By: Lynette

Lynette — Thu, 20 Sep 2012 13:10:35 +0000

Another great one of an area I go through twice a day. Thanks for it and for the link to the other one!