Jump to content

 

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

Sign in to follow this  
eubanks

What Octane?

Recommended Posts

eubanks

There is a thread over on WSR.com about this but I thought I would bring the discussion over here for some additional feedback.

I believe the Indmar manual recommends a minimum of 89 octane for the Monsoon engine, but our dealer uses and told us to only use the 87. The consensus on WSR seemed to be that you should really use the 89 which now confuses me since our dealer told us there is no advantage of going with the higher octane. Dontknow.gif

Help!

Share this post


Link to post
Share on other sites
chathamsolutions

It's a Chevy small block. I don't think you can go wrong either way.

I think I said it over there too... I put in 89. If I'm at a dock that offers 87 and 91 - I'll opt for the higher of the two.

No pings, missfires, false starts (one hydrolock, but....) in 86+hours.

Share this post


Link to post
Share on other sites

I agree. I also use 89 or 91 if mid-grade is not available. Our engines are tuned a little hotter than a stock motor and the added octane will slow the burn a bit. The added cost is not really that much when compared to a vehicle you use everyday.

Honestly, I don't think you will hurt your motor by using 87 octane, but you could get some detonation and sacrifice a little power.

MHO

Share this post


Link to post
Share on other sites
VinRLX

No need to overdo the octane on a low compression engine, 91+ is a WOM. I use 89 as recommended by Indmar and don't want to lose any performance, particularly being above sea level.

Share this post


Link to post
Share on other sites
hbrew

I use 89, LCR 320.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...