Re: [Chrysler300] Oil talk

["Michael Reed" <mrreed@xxxxxxxxx>]

There is a *BIG* contradiction in the statement from Chevron. The API/SM classification limits the combination of zinc (and phosphorous) to a maximum of 800 parts per million.

If Chevron Delo contains 1,300 ppm it simply does not meet API/SM specifications and therefore can't be (legitimately) classified as an "SM" motor oil.

Okay, now -- so what am I missing here?

Mike  Reed in Lake Odessa, Michigan

  ----- Original Message ----- 
  From: Bob Jasinski 
  To: Chrysler300@xxxxxxxxxxxxxxx 
  Sent: Monday, April 28, 2008 13:43
  Subject: [Chrysler300] Oil talk


  I emailed Chevron this morning and got this response, thought the group
  would benefit. I have been using Delo by Chevron because my local Costco
  store carries it. It sounds like it has a bit more zinc (1300ppm) than
  Rotella (1200 ppm).

  Bob J

  _____ 

  From: Lube Tek Call Center [mailto:lubetek@xxxxxxxxxxx] 
  Sent: Monday, April 28, 2008 9:33 AM
  To: Bob Jasinski
  Subject: RE: Best oil for 1961 Chrysler 300G

  Thank you for your inquiry. Delo 400 LE 15W40 and 10W30 both have 1300 ppm
  zinc and meet API classification SM, so they will both give adequate
  protection for flat tappet cams.

  _____ 

  From: Bob Jasinski [mailto:rpjasin@xxxxxxxxxxx] 
  Sent: Monday, April 28, 2008 11:53 AM
  To: Lube Tek Call Center
  Subject: Best oil for 1961 Chrysler 300G

  I own a '61 Chrysler 300G with a high performance 413 with 2-4bbl carbs. I
  am concerned about the reduction in zinc in the new SM motor oils for gas
  engines. It is my understanding that diesel motor oils have continued to
  offer higher zinc levels, and I am planning on switching to these types. 

  What is the best Delo oil to use for gas engines? I live in the San Fran
  bay area and drive the car mostly in the summer and take it to Reno during
  that time, never in the winter. Discussions on my car club list server are
  warning users to be aware of the low levels of zinc in SM oils and are
  recommending adding a product to restore the zinc to the mix, with use of
  diesel oils a good drop in replacement.

  Thank you for your knowledgeable response.

  Bob Jasinski
  331 La Questa Dr.
  Danville, CA 94526
  925-831-9727 home
  925-366-0035 cell
  rpjasin@xxxxxxxxxxx


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