Why Is Techron The FI Cleaner Of Choice?
10-14-2009, 06:18 PM
#18
Octane is a rating. It is not a percentage. There are fuels with rating exceeding 100. http://en.wikipedia.org/wiki/Octane_rating
But can you answer the original question? We've done some dyno testing and don't get any performance gains (the AMG) with higher octane than the ecu is tuned for. But with aftermarket tunes (Renntech, etc.) that are tuned for 100, then yes, it shows. But what about the 993 and octane? I'm not sure (obviously
) how the ecu handles fuel.
Last edited by Canyon56; 10-14-2009 at 06:51 PM.
10-14-2009, 06:37 PM
#19
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10-14-2009, 06:37 PM
#20
Burning Brakes
Yeah, I realize that, my mistake (bad habit or something) Thanks. The station close to me also sells 110 (unleaded) race gas.
But can you answer the original question? We've done some dyno testing and don't get any performance gains (the AMG) with higher octaned than the ecu is tuned for. But with aftermarket tunes (Renntech, etc.) that are tuned for 100, then yes, it shows. But what about the 993 and octane? I'm not sure (obviously) how the ecu handles fuel.
But can you answer the original question? We've done some dyno testing and don't get any performance gains (the AMG) with higher octaned than the ecu is tuned for. But with aftermarket tunes (Renntech, etc.) that are tuned for 100, then yes, it shows. But what about the 993 and octane? I'm not sure (obviously
) how the ecu handles fuel.
10-14-2009, 06:54 PM
#21
10-14-2009, 07:32 PM
#23
A bit OT but the Narvarro quote on octane boost brings up a question for me.
Sometimes I use race gas (100 octane readily available at the pump here at some 76 stations) and sometimes I mix 91 with 100.
But I'm curious as to what octane these cars are tuned for? i.e., if I use 100 is it kind of a waste? Is it actually better performance to use a mix or just stick with 91.
I ask because my AMG's ecu will adjust the timing to the octane. But without an aftermarket tune set for a much higher octane, using 100 is a waste. The ecu sets for 91-98. There's no performance gain with pure race gas (tested on a dyno.)
What about the 993 motor? What's the "ultimate" octane in respect to performance and economy? I understand all about octane and detonation, etc., but just wonder about the ecu and timing, etc., on these cars in respect to fuel.
Sometimes I use race gas (100 octane readily available at the pump here at some 76 stations) and sometimes I mix 91 with 100.
But I'm curious as to what octane these cars are tuned for? i.e., if I use 100 is it kind of a waste? Is it actually better performance to use a mix or just stick with 91.
I ask because my AMG's ecu will adjust the timing to the octane. But without an aftermarket tune set for a much higher octane, using 100 is a waste. The ecu sets for 91-98. There's no performance gain with pure race gas (tested on a dyno.)
What about the 993 motor? What's the "ultimate" octane in respect to performance and economy? I understand all about octane and detonation, etc., but just wonder about the ecu and timing, etc., on these cars in respect to fuel.
http://www.rennsportsystems.com/2a.html
10-14-2009, 07:32 PM
#24
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Hybrid question (related to both Techron and gas). Since the early 80's I've been using Chevron gas, which uses Techron as an additive to all octanes. I started because the mechanics who worked on my wife's BMW 5-spd. 6 series coupe (what a nice car that was) suggested it was the best way to prevent clogged injection jets on that engine.
I've used it on every car ever since and really believe it to have been a significant contributor to the longevity of our cars. My question is whether the use of the concentrate cleanser before each change of oil will add anything beneficial to our car care process. Also I wonder if we could have saved a ton of money over the years on cheaper gas, and just used the additive every 3,000. However, after all the good results we've had I could never actually do this. I'm not kidding, my Chevron habit is so strong after all these years I have to consciously force myself to put something lesser in rental cars.
I've used it on every car ever since and really believe it to have been a significant contributor to the longevity of our cars. My question is whether the use of the concentrate cleanser before each change of oil will add anything beneficial to our car care process. Also I wonder if we could have saved a ton of money over the years on cheaper gas, and just used the additive every 3,000. However, after all the good results we've had I could never actually do this. I'm not kidding, my Chevron habit is so strong after all these years I have to consciously force myself to put something lesser in rental cars.
10-14-2009, 08:02 PM
#25
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Tony Callas has recommended that you do NOT use a bottle of Techron if you use Chevron gas (which already has Techron as an additive). He said that it tends to "wash the cylinders." Maybe he'll chime in here.
10-14-2009, 09:35 PM
#26
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Skywachr, I think Chevron is great fuel. I use it every chance I can get, usually on trips to the Tail of the Dragon. I do not think you need to use the yearly FI cleaner in addition to your current regiment.
10-14-2009, 11:08 PM
#27
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10-14-2009, 11:31 PM
#28
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FWIW, I used to use Chevron but now use Lubro Moly's Ventil Sauber. Supposed to be very good stuff. But what do I know? Better yet, what kind of hard results does anyone have? I am working off the recommendations of a couple of knowledgeable folks.
Edward
10-15-2009, 01:48 AM
#29
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I can tell you that we have 2 cars in our family with over 130,000 miles on them that both run like tops due to this Chevron discipline and doing all scheduled maintenance (a '99 Suburban driven by our kids and intended by us as a large metal shield against all comers, and a rarely-driven old MBZ SL that I can't get myself to sell yet). The stuff definitely works.
Last edited by skywachr; 10-15-2009 at 02:10 AM.
10-15-2009, 02:03 AM
#30
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Yer killin me, man! Do the newbs a favor and cut it out before there is any real damage done!
FWIW, I used to use Chevron but now use Lubro Moly's Ventil Sauber. Supposed to be very good stuff. But what do I know? Better yet, what kind of hard results does anyone have? I am working off the recommendations of a couple of knowledgeable folks.
Edward
FWIW, I used to use Chevron but now use Lubro Moly's Ventil Sauber. Supposed to be very good stuff. But what do I know? Better yet, what kind of hard results does anyone have? I am working off the recommendations of a couple of knowledgeable folks.
Edward