2nd car, year+ old fuel, lil' 100LL AVgas?

[Boots14127]

Hi All,

So I just added about 1/2g 100LL AVgas to maybe 3-4g of 1+ year old gas in my old Q45 thats been sitting a year and a half.
Didn't clock what LL meant until actually researched it after adding.....

I should be 'ok' right? Cats and 02 seem to be fine from last CA Smog before moving to NYS where its only been on the road for 3-4K miles and stored. From reading it seems like cat/02 are damaged with more consistent use.

Plan is to run it dry, then keep a gallon of E-free with some Stabil in it and run it occasionally over the next 6-8m til I can get it painted and back on the road.
Wife wants me to offload it because its got bad clearcoat shedding, but since its only got 82K, and runs like a freaking monster and I'd only get 3K max, I can't let it go...

 

[JavierH19]

It'll be fine. And what color is it. If the paint under the clear coat is still ok and not too faded you can lightly sand around the edge of the clear coat with 1000 grit and use rustoleum crystal clear enamel. You can also lightly sand a little bit more from the edge of the clear fade and lightly spray oem color matched paint before putting cce.

I did that on the outlander sport front plastic nose cone without reapplying paint which I wish I would have since it would have looked almost like new. I only light sanded the edge of the clear peeling and recleared it since the paint didn't peel or get damaged but it did fade a little from being exposed to the sun for a few months. I didn't take a before picture but the difference is night and day even without new paint and what I would say was insufficient sanding since I was trying to be extra careful. You can still see the fine line of the old clear coat and the slight change in paint color which is a slightly lighter red but you have to get within a foot of it head on to see. Before you could see it from any angle from 30ft away. Now I forget it's there if I pass by it since it's fairly inconspicuous. If I would have also resprayed a bit of new paint on it and sanded the clear a bit more before clear coating again the color difference would be minimal and the the old clear line would be even finer but it was just the tiny part on the nose cone of sorts in front of the hood.

If the paint is something like plain jane black or white and it's a lot to sand and spray you could get a small can of oil based rustoleum and foam roll it after sanding the whole panel in one go and then spray that oil based clear which I did on an old white ford ranger and it came out good. The other kind of rustoleum clear is water based and has poor durability but both cost the same.

 

[fantastic]

Is this a "Low Lead" fuel?

 

[walterjay]

I don't think that little bit will hurt it.

 

[RedSpider]

100LL is NOT low lead, it has more than double TEL than what automotive gasoline had, and as automotive leaded was being phased out the percentage was even significantly higher than that. The "LL" for "low lead" was only in relation to other aviation fuels.

 

[Boots14127]

OK, read somewhere 1982 Leaded was 1.1g (~0.25g/l) vs Exxon saying AV100LL as 0.56g lead/litre Max.
Later Leaded was much lower as you said.
Glad to hear it should not be an issue, its been idling the past hour+.
Will post a pic.

Thanks everyone.

 

[nwjones18]

I don't think 1/2 gallon will hurt anything, but I'd top it off with non ethanol fuel and stabil and let it sit that way myself..

 

[Boots14127]

 

[kschachn]

OK, read somewhere 1982 Leaded was 1.1g (~0.25g/l) vs Exxon saying AV100LL as 0.56g lead/litre Max.
Later Leaded was much lower as you said.
Glad to hear it should not be an issue, its been idling the past hour+.
Will post a pic.

Why is that?

 

[addyguy]

Said he was going to ‘run it dry’ in his first post.
Neat car, don’t see them much…I’d try a severe ‘polishing routine’ with a rubbing compound to possibly save the paint first.

 

[gamefoo21]

I would avoid LL in anything with a catalytic converter, even low amounts of lead will bond to the ceramic and wreck it.

I tend to get non-ethanol fuel around these parts its only available in premium and add a stiff dose of good PEA cleaner and a liter of 99+% Isopropanol Alcohol to it, then pour it into the tank.

So for me it works out around 10L of 91+, a bottle of SI-1 and a liter of IPA. Will rip moisture out of the tank, the Redline helps break up any junk while also providing a bit of lubrication to the pump and system.

The trick with blender pumps is always to throw the first 5-10L into something you don't mind getting ethanol, so I tend to put it in the tank of the vehicle I'm driving. Then fill the jerrycan after. It's also how I keep my small engine stuff from eating their carbs.