Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Tiara Open 1999 454 Oil choice
#11
I run Shell Rotella T SAE 30W. Getting hard to find though. My oil pressures are ~30 psi at 32-3600 and full operating temp with OAT of 90+ in Pensacola, FL.
Rob

1986 Tiara 3600 Continental, 454 Crusaders, 7.5kw Diesel Genset
2002 Luhrs 290 Open, 315hp Yanmars
Reply
#12
I did my fall oil change before storing the boat for the winter and put the 15w40 rotella in it again. Oil I took out with about 50 hours on it looks perfect so I’ll keep you updated! Lol!
Reply
#13
I use straight Rotella 40 wt in my 1998 31 open
Reply
#14
Rotella 40
Reply
#15
Used straight 40, 1500 hours had top ends done. Switch to pure syn, 15/40
2100 hours going strong.
ISBIB
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  [Tiara Coronet] 6.0l Captains Choice - Spark Plugs tjmoberg 0 1,459 10-15-2021, 04:12 PM
Last Post: tjmoberg



Users browsing this thread: 1 Guest(s)
Advertisements

Latest Threads
Hot Engine Room
Last Post: Nelsond
Yesterday 11:36 AM
» Replies: 0
» Views: 36
Anyone using a cordless robot on a Tiara...
Last Post: thomasbrown
11-03-2026 05:08 PM
» Replies: 0
» Views: 46
Anyone using a cordless pool cleaner wit...
Last Post: hiccup
11-02-2026 01:18 PM
» Replies: 1
» Views: 75
Replacing the head on a Tiara 3100 — do ...
Last Post: hiccup
11-02-2026 01:17 PM
» Replies: 1
» Views: 65
89 3100 convertable
Last Post: hiccup
10-30-2026 06:13 PM
» Replies: 2
» Views: 978