What additives do you use?

[e30trooper]

i run this in the GF's 01 corolla


100 miles for ever 10 bux :D With chevron's 91 oct. gas

Ive been wanting to seafoam my vert. ive done it to my impreza and eta and felt that it did somewhat clean the intake and exhaust very well. Lots of smoke from just a 1/3 cup in the intake.

[TimR]

BG 44K Fuel injector cleaner, Diff LSD II Tranny MGC 40 years strong, Lucas has great products too. Oct. booster, got a station that sells 100 Oct. from a pump for $5.99 a gal so i don't have to add.

[lennon]

try putting 93 octane in a stock air-cooled motor. shit, even 89 octane. I dare you.

what?

[trackjunkie21]

i run this in the GF's 01 corolla


100 miles for ever 10 bux :D With chevron's 91 oct. gas

Ive been wanting to seafoam my vert. ive done it to my impreza and eta and felt that it did somewhat clean the intake and exhaust very well. Lots of smoke from just a 1/3 cup in the intake.

I use the top end lubricant in my m42, it slows down my oil leaks

[Emre]

I don't know if it makes a difference or not, but I've also been using Lucas Upper Cylinder Lubricant in my E30. They say it's good for the fuel system and fights some of the ill effects of the gasohol we're forced to use around here. Dunno if it really does anything at all, but I use it during the track season.

I also add about 15% Lucas HD Oil Stabilizer to the oil (Kendall GT-1 20W-50) when I hit the track. I used to run straight Castrol GTX 20W-50, which most E30 guys swear by. But I had issues with low oil pressure in the corners as well as significant oil consumption. I switched to the Kendall GT-1 plus Lucas HD combo: not only is my oil pressure way up, but oil consumption is now essentially zero.

[quikveedb2]

Premium fuel doesn't exactly mean it will make your car run better just bc it's a higher octane. example: try putting 93 octane in a stock air-cooled motor. shit, even 89 octane. I dare you.

what?

+1. I'm not sure what you're getting at, can you elabotrate? A higher octane rating means higher resistance to detonation. In my experience air-cooled motors tend to run on the warm side, which can lead to detonation, uneven fuel burn, shitty power output, garbage gas mileage, and the carbon buildup & increase in compression you referred to. Higher octane gas negates this, to a degree. Granted very few of the aircooled motors I've build have been stock.

On a somewhat related note, on the other end of the detonation spectrum, living at altitude (+9000ft) I had to run lower octane gas in my S4 because higher octane gas would cause random multiple misfire codes, basically the gas would not detonate at all, because the combination of the low compression asscoicated with 30% less oxygen at almost 2 miles above sea level and high detonation resistance of 91 or 93 octane gas. I'm sure someone will disagree with me on this, but this in my personal experience.

/OT, back to the snake oil discussion.

[Brandon12V]

I was just speaking on behalf of stock motors. if it's modified to run a higher octane, that would be a different story. my point was that you should run the specified fuel the manufacturer recommends. they spent thousands in R&D for a reason. as you said carbon build up is commonly caused by unburnt fuel and air-cooled motors were never meant to run a higher octane. I've had the opportunity to build a few small cc VW's and alot of them came in running like shit due to so much carbon build up. so much so that it was interferring with the valves.... on a non-interference motor.

here's 1968 VW bus that needed a rebuild where I found some of the same issues. It ran like shit.

[5Toes]

Anybody run Marvel Mystery?

[sarcasmkillsme]

I use this when I change my oil.

http://www.liqui-moly.de/liquimoly/produktdb.nsf/id/usa_2009.html

[Simon S]

I add Baileys and chololate syrup to my press coffee.

[Fleksta]

Just a healthy dose of Seafoam in the tank every month or so.

[mach schnell]

Anybody run Marvel Mystery?

I do. Marvel Mystery Oil (MMO) is a product that a lot of knowledge old-school engine builders have sworn by for years.

Run a treatment of MMO through your cars once or twice a year - it's good stuff.

[stamar]

I use seafoam

Its best use is as an intake cleaner through the brake booster. Stuff is golden.

In that sense its not really an additive. I guess you are adding it to gunk.


However it can be used as an additive for gas with limited success as a fuel injector cleaner..... all i can say about it is it doesnt destroy anything like some additives do...., and a near oil change additive to oil to clean stuff.

Thats the best additive on the market....

[Mafiaracers]

Here's a fantastic forum about oil, gas, additives etc.

A great read!

http://www.bobistheoilguy.com/forums/ubbthreads.php

[mach schnell]

I was just speaking on behalf of stock motors. if it's modified to run a higher octane, that would be a different story. my point was that you should run the specified fuel the manufacturer recommends. they spent thousands in R&D for a reason. as you said carbon build up is commonly caused by unburnt fuel and air-cooled motors were never meant to run a higher octane. I've had the opportunity to build a few small cc VW's and alot of them came in running like shit due to so much carbon build up. so much so that it was interferring with the valves.... on a non-interference motor.

here's 1968 VW bus that needed a rebuild where I found some of the same issues. It ran like shit.

You must be talking about VW aircooled motors. High-compression aircooled Porsche motors need high octane. Gotta run 91/93.