Engine Oil
06-24-2015 | 10:41 PM
#12
Banned
Joined: Jul 2011
Posts: 9,594
Likes: 46
From: Ft. Worth TX
^^^^ will agree and will add oil viscosity - a big deciding factor is what your bearing clearances are set up at.
A good example of this is the Indmar and the PCM marine GM LSX (550 /556) requires 5 w 30. motor oil and some other of their GM based marine engines require 15w - 40
A good example of this is the Indmar and the PCM marine GM LSX (550 /556) requires 5 w 30. motor oil and some other of their GM based marine engines require 15w - 40
Last edited by BUP; 06-24-2015 at 10:44 PM.
06-25-2015 | 07:49 AM
#14
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Joined: Nov 2004
Posts: 14,106
Likes: 3,692
From: On A Dirt Floor
IMHO - don't let someone talk you out of something that has worked for you for many years. Factory 502's aren't the most 'tightest' engines.
07-11-2015 | 06:27 AM
#18
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Joined: Apr 2001
Posts: 4,213
Likes: 0
From: Chicago il
Gibbs Driven synthetic 15-50. Keeps great oil pressures even after hard runs.
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07-12-2015 | 07:14 PM
#20
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Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
I'd have a hard time switching from what's known to work after 10 years. Some of these "oil experts" can't get an engine to live for 10 minutes.
