If I start using super unleaded fuel will I still need to use fuel aditve or will the valves be okay.
Thanks
Super unleaded petrol
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Re: Super unleaded petrol
No you will need an additive unless you have hardened exhaust valve seats in your engine.
- Jasonmarie
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Re: Super unleaded petrol
Yes agree with paul , I do have a unleaded head but still use millers fuel additive as it give the right octane . Also helps with the E5 in the petrol . When I lay her up for winter I use millers tank safe on a full tank
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Re: Super unleaded petrol
So is there any advantage in using super unleaded or am I just waisting money.
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Re: Super unleaded petrol
There’s a few of us that do notice the difference, I filled up with just unleaded on the way back from the CCI meet a few years ago and thought afterwards the car was not picking up as quick .
My thoughts when I drove my old Capri in the late 80s was 4* star was 97Ron and ford said use super unleaded as that is also 97 Ron where unleaded is 95 Ron
Talking Ron is he still on here .
Ps that’s from my head ref the Ron numbers
My thoughts when I drove my old Capri in the late 80s was 4* star was 97Ron and ford said use super unleaded as that is also 97 Ron where unleaded is 95 Ron
Talking Ron is he still on here .
Ps that’s from my head ref the Ron numbers
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Re: Super unleaded petrol
So using super unleaded will increase performance slightly.i have a 1600 with a weber do I just leave the settings at plugs 25, points 20 and timing 8btdc.
Thanks
Thanks
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Re: Super unleaded petrol
Personally, I'm happy to use regular unleaded with Miller's VSPE+ additive.
Andrew.
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Re: Super unleaded petrol
Actually I remember 4star was 99 RON, super was 5star, which was 101 or even 105 RON.
3star was 95 RON, and was often called “blend” because it was a halfway house between “economy” or “regular” which was 2 star, rated at 91 RON and 4 star ..
So today’s “new” “unleaded” is actually 3 star - not a good substitute for the old 4 star. - using a booster additive is a good way to keep your engine in good condition or easier, like I do, always use the “super “ brands, some are 97 but I think some are 99 RON.
Even though she’s had a new 24v BOB cossie heart, which is configured for unleaded, I always use super.
I’m really concerned about the introduction of E10 though, and the fact that super will not be around in 5 years. The persistent quest to destroy our freedom and enjoyment!
3star was 95 RON, and was often called “blend” because it was a halfway house between “economy” or “regular” which was 2 star, rated at 91 RON and 4 star ..
So today’s “new” “unleaded” is actually 3 star - not a good substitute for the old 4 star. - using a booster additive is a good way to keep your engine in good condition or easier, like I do, always use the “super “ brands, some are 97 but I think some are 99 RON.
Even though she’s had a new 24v BOB cossie heart, which is configured for unleaded, I always use super.
I’m really concerned about the introduction of E10 though, and the fact that super will not be around in 5 years. The persistent quest to destroy our freedom and enjoyment!
Cheers
Capri 2.9i Special 1984 Cossie 24v BOB heart transplant
Sierra XR4x4 2.9i 1992
Jaguar XJR 4.0 SC 2001
Jaguar F-Type 3.0S sc 380
Capri 2.9i Special 1984 Cossie 24v BOB heart transplant
Sierra XR4x4 2.9i 1992
Jaguar XJR 4.0 SC 2001
Jaguar F-Type 3.0S sc 380
Re: Super unleaded petrol
I also read somewhere that branded Super contains a better package of additives such as detergents and lubricants to keep the engine clean.
But, as you say, I'm seriously worried about the introduction of E10.
But, as you say, I'm seriously worried about the introduction of E10.