Going synthetic
#1
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Going synthetic
I know this subject has been covered beforebut.. any sugestions on what weight Mobil 1 to run in my 87' 454's with 500+ hours
#4
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Location: Michigan
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My personal opinion would be to first make sure you don't have any leaks anywhere. Engines with that many hours on them may have some leaks. If you switch to a synthetic, such as AMSOIL or Mobil 1, the detergent packages in those oils can clean any build up, which can possibly lead to leaks. If you're not worried about that, then I would go with the above, either AMSOIL 15w-50 Dominator Racing Oil, or Mobil 1 15w-50.
#5
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I have been using Merc 25W40 and found that the price of the M1 wasn't much more and may benefit from the synthedic, my motors are clean with no leaks so I should be ok
#6
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Mobil 1 15-50 is the same price as merc oil if you buy the 5 qt jugs at walmart. I can tell you that when I switched to M1 in my 502mpi's, my oil consumption was cut in half. The prior owner had always run conventional oil.
#8
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I would do it no problem, I started my 454 at 350 hours on 10w-30 royal purple and ran it till over 1000 hours with no issues, I think it's a good move on boats as they work hard all the time and may help economy as well....even run it in my genset....Rob
#9
WallyWorld 15W-50 M-1 SilverCap
If you race then M-1 20w50 V-twin
Redline 20W-50
Amsoil 15W-50 Racing
RP 20W-50
Motul 15W-50
Valvoline 20W-50
All excellent with a M-1 or Amsoil filter.
If you race then M-1 20w50 V-twin
Redline 20W-50
Amsoil 15W-50 Racing
RP 20W-50
Motul 15W-50
Valvoline 20W-50
All excellent with a M-1 or Amsoil filter.