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-   -   how often should you change oil in 454 big block (https://www.offshoreonly.com/forums/do-yourself-boating-budget/213783-how-often-should-you-change-oil-454-big-block.html)

[email protected] 07-27-2009 03:20 PM

how often should you change oil in 454 big block
 
how often should you change oil in 454 big block,

Throttle Fever 07-27-2009 03:34 PM

I do mine between 20 and 25 hours. Depending on how hard I run them in that oil change period.. Oil is cheap.

Audiofn 07-27-2009 03:38 PM

What motors do you have? I run synthetic and change them every 30 hours. So for those that know me in the last 6 seasons I have done one oil change. :D

GO4BROKE 07-27-2009 08:29 PM

20 hours

happy hours 07-27-2009 09:07 PM

I have a SBC but run it pretty hard (alot of wake boarding). I run conventional oil and change it about 20 hrs. Sent a sample in and they said it was nearly used up. Figure oil is cheap.

satisfactionII 07-28-2009 11:16 AM


Originally Posted by happy hours (Post 2919458)
I have a SBC but run it pretty hard (alot of wake boarding). I run conventional oil and change it about 20 hrs. Sent a sample in and they said it was nearly used up. Figure oil is cheap.

Where can a person send the oil in to be sampled? How much do you send and what is the approximate cost?

Thanks
SAR

07DominatorSS 07-28-2009 11:53 AM


Originally Posted by satisfactionII (Post 2919815)
Where can a person send the oil in to be sampled? How much do you send and what is the approximate cost?

Thanks
SAR

Intervals can depend on what oil you use. I personally used AMSOIL and change once a season, which is about 50-60 hours.

Analysis, I use "Oil Analysis Lab" in Spokane, Washington. My last years analysis with 53 hours on the oil was still cleaner and stronger than Merc 25w-40 out of the bottle. I have twin 496hos. The tests cost $15, and take about a week to ten days to get back.

eichhoma 07-28-2009 12:27 PM


Originally Posted by satisfactionII (Post 2919815)
Where can a person send the oil in to be sampled? How much do you send and what is the approximate cost?

Thanks
SAR

Try Blackstone Labs. I have been using them for years.

http://www.blackstone-labs.com/

Email them and they will send you free sample and shipping kits with instructions etc.... the reports are really snazzy and very detailed. Cost is about $22


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