What causes the romps?
Senior User
Joined: Oct 2008
Posts: 466
Likes: 0
From: Ontario, CAN
Before I installed the HPX, my truck had really bad "romps" in the mid 40's. Since I installed the HPX there has not been an issue even as low as mid twenties. I'll see how it acts when it starts to get cold.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
I have a 1999.5 and never had the romps on any kind of oil.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
Why does my truck not experience the romps in the low twenties and the OP is experiencing the romps in the low fifties? We're both running 15W40 dino oil. Doesn't sound like an oil issue, sounds like an electrical/mechanical issue. Maybe thinner oil masks the electrical/mechanical issue, IDK.
Cargo Master
Joined: Oct 2008
Posts: 3,330
Likes: 13
From: Eaton, CO
Yes, it's our main work truck for our business. When I bought it, it had dino oil in it and it never romped in the single digits or teens that winter.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
I ONLY got romps with Delo dino. Never romped on Rotella (dino or syn). But I'm sure there are folks here that don't get romps with tunes *and* dino oil. Who knows if the the base tuning affects this -- it would be interesting to see that in a poll. I would also think that a slightly boogered up IPR would aggravate the romping with thick oil. Maybe someone getting them at warmer temps could try out an IPR change. I run syn oil, and won't go back anymore, so I'm out of the experiment... LOL
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