regular gas

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Aug 5, 2008 | 10:20 AM

danwjag

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regular gas

I'm seriously considering buying a 96 XJS.

Specs call for premium gas. However, I've read that regular (87octane)is OK IF thevehicle is equipped with knock sensing in the engine controls.

Articles say you suffer a performance decrease but if that is something you want to regain just begin using premium again.

I assume the 96 6 cylinder engine would have this feature.

Is this correct regarding controls??

Thanks,

Dan W.

Aug 5, 2008 | 10:31 AM

Thermo

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Joined: May 2008

Posts: 14,803

Likes: 4,100

From: Great Mills, MD

RE: regular gas

Dan, knock sensor can only adjust so far. Don't run regular gas. Most likely result in engine damage over the long term.

Aug 5, 2008 | 10:59 AM

badmojo

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Joined: Dec 2006

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RE: regular gas

Plus the miles per gallon loss you get with lower octane isn't worth it. Your only looking at about a 6.00 per tank full difference!

Aug 7, 2008 | 08:45 PM

JimC64

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From: Glasgow, Scotland UK

RE: regular gas

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Hey dan.............for the price of fuel over there tis gotta be premium ALL the way to get the best outta her and keep her in tip top shape surely?

Jim