When did you last change your filters?
Preview text: Fresh filters keep your diesel running when it counts.

Using this email in an article? Credit: Doc's Diesel email via They Sent It, with a link to this page. Full-size image
- Subject
- When did you last change your filters?
- Preview text
- Fresh filters keep your diesel running when it counts.
- From
- sales@
docsdiesel.com - Brand
- Doc's Diesel
- ESP
- Klaviyo
- Sent
- Fri Oct 9, 2026, 10:00 AM ET
- Sent to
- docs-brands.com, docsautomotive.com, docsbrakepads.com, docsbrandswholesale.com, docsdieselfilters.com, docslubeoil.com, docsperformance.com, docsracing.com, docssupplyco.com, docstrailerparts.com, jacksfilters.com, jackstrailerparts.com, powertrainautoparts.com, thewaterdays.com
- Size
- 54 KB
- Images
- 18
- Links
- 18, 1 of them buttons
- Subject length
- 38 characters
Against Doc's Diesel's usual
Sent in its busiest hour, 10 AM, which holds 23% of its emails. The subject is 38 characters; its average is 33.
Email headers
What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.
- From
- Doc's Diesel <[email protected]>
- Subject
- When did you last change your filters?
- Date
- Fri, 09 Oct 2026 14:00:11 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-63
- Return-Path domain
- mail.docsdiesel.com
- DKIM signature
- d=docsdiesel.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-canary-…-9jvv4 with SMTP
- from (unnamed) by geopod-ismtpd-63 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Oct 12, 2026 10:00 AM | Schedule It. Save 5%. | |
| Oct 11, 2026 10:02 AM | Winter Is a Bad Time for This Repair | |
| Oct 10, 2026 10:00 AM | How Cold Diesel Turns Into a No-Start | |
| Oct 9, 2026 10:00 AM | When did you last change your filters? (this email) | |
| Oct 8, 2026 10:01 AM | The First Freeze Is Coming. Are You Ready? | |
| Oct 7, 2026 5:00 PM | Doc's Prime Deals End Tonight | |
| Oct 7, 2026 10:00 AM | Last Day for Doc’s Prime Deals |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 9, 2026.














