Miata Mailing List: April 1998, Message #221
![[previous topic]](../images/prev_topic.gif)
![[previous]](../images/prev.gif)
![[index]](../images/index.gif)
![[next topic]](../images/next_topic.gif)
| From: | Hobbes 90 <Hobbes90@aol.com> |
| Subject: | Re: What weight synthetic |
| Date: | Wed, 1 Apr 1998 17:50:07 +0000 |
In a message dated 98-03-31 21:27:36 EST, jamsc@wizard.net writes: > Last summer at track events I had HLA noise after a hard track run despite > using Mobil 1 (10W-30) oil. Today I came across Mobil 1 15W-50 synthetic > oil, anyone have any experience with this oil and does it help the HLA > problem afer a hard run?? What did everyone at Thunderhill use and what > were the results? > Joe, I was told never to run a heavier weight oil than what the manufacturer specifies. My lifter noise completely went away with 5w-30 Mobil 1 and filling the filter before installation. Ken Hill