What not to put GC in??

sewerman · Oct 25, 2004

It seems that GC is taking this site by storm and more and more people every day are switching..It seems that GC is suitable for just about everyone who's tried it,which is phenominal in my book..But there has got to be an engine situation where it just wouldn't work so,other than a car that leaks/burns 3 quarts a mile can anybody think of or know of a UNGC engine/situation???

ps.. just wanted this to be a fun speculative or first hand account type discussion and not the castrol people lied,misled and I hate them post..

Gary Allan · Oct 25, 2004

I'd like to see a jeep owner try it on either the 4.0 or 2.5. The stuff may be into the stratosphere of 30 weight enough to be appropriate for these engines ..but I'm not going to switch from the HDEO synths to find out. Lighter is better where ever possible and effective. I'm probably never going to do less than a 10k/6-8m OCI on either of mine and there are plenty of jeep owners here that can't resist the urge to change it more often. I've been waiting for one of them to try the magic liquour and establish a couple of back to back UOA to form a trend.

edit: Ahh ...I think I have a nibble here

A future GC user??

[ October 26, 2004, 08:16 AM: Message edited by: Gary Allan ]

97tbird · Oct 25, 2004

4.6L modular Fords...I didn't like it much in my 1997 T-bird (start-up and idle rattle + consumption of 0.75 qts in 4k miles)

switching to MC 5w30 syn.blend once winter starts.

Dr. T · Oct 25, 2004

Yes...when you need an oil with more cojones. For eg. my 200k mi. BMW will eat any 30 or 40 weight. So even though (Patman can confirm this) I am founding father of GC to this board

, I have not tried it in my car, but rather opt to use Syntec 5-50.

So, in summary I would say any car that needs something more than an A3-rated 30 weight would qualify for your answer.

Terry · Oct 25, 2004

Dr.T or should I say Dr.GC !!! Thanks for alerting us to this oil formula.

I have requested an in depth analysis of an off the shelf sample of the GC 0w30 to be broken down and tested in a blinded test because I want to KNOW for sure what it is made of.

If and when I can share that I will for all you worshipers of that oil.

The testing cost is $3000 so when I can get the data collected those that are interested may have to ante up or we can extract pieces of the data as we can afford.

No guarantees.

Terry

ZiTS · Oct 25, 2004

quote:

Originally posted by Gary Allan:
I'd like to see a jeep owner try it on either the 4.0 or 2.5. The stuff may be into the stratosphere of 30 weight enough to be appropriate for these engines ..but I'm not going to switch from the HDEO synths to find out. Lighter is better where ever possible and effective. I'm probably never going to do less than a 10k/6-8m OCI on either of mine and there are plenty of jeep owners here that can't resist the urge to change it more often. I've been waiting for one of them to try the magic liquour and establish a couple of back to back UOA to form a trend.

edit: Ahh ...I think I have a nibble here

A future GC user??

Funny you should mention that, as I've been considering the GC for my '04 Wrangler 4.0L.
I was planning on the M1 0w-40 during winter time, and possibly the M1 T&S 5w-40 during the warmer months. However, I've been using GC in my wife's car for quite a while now, and have obtained good results.

What do you think? The engine will soon have about 1,500 miles on it. Should I go with M1 or GC?

Dr. T · Oct 25, 2004

Dr. GC...that's funny. Save that title for you after doing the $3k study!

Audi Junkie · Oct 25, 2004

I think he meant $300, not $3000.

Gary Allan · Oct 25, 2004

quote:

What do you think? The engine will soon have about 1,500 miles on it. Should I go with M1 or GC?

Oh ..go ahead and be a guinie pig! I've done my part by doing 10-13k OCIs with Delvac 1. You can blaze your own trail in a new direction!!

Answer the question:

"Aside from making you feel good, can GC even cure Fe dandruff in jeep inline engines"??

Patman · Oct 25, 2004

quote:

Originally posted by Audi Junkie:
I think he meant $300, not $3000.

I bet you he did mean $3000. In order to fully test an oil in the fashion he's talking about, it's more than just a simple spectro analysis.

Dr.T, I'm surprised you didn't try GC since you were the first one on here to spot it! You never know unless you try it, it might just work very well in your car, no matter how much thinner an oil it is than you're used to running. You owe it to yourself to at least try one or two intervals to see how your V12 likes it.

Sparkman · Oct 26, 2004

quote:

Originally posted by Gary Allan:
I'd like to see a jeep owner try it on either the 4.0 or 2.5. The stuff may be into the stratosphere of 30 weight enough to be appropriate for these engines ..but I'm not going to switch from the HDEO synths to find out. Lighter is better where ever possible and effective. I'm probably never going to do less than a 10k/6-8m OCI on either of mine and there are plenty of jeep owners here that can't resist the urge to change it more often. I've been waiting for one of them to try the magic liquour and establish a couple of back to back UOA to form a trend.

edit: Ahh ...I think I have a nibble here

A future GC user??

I just got my first GC today!!!

I am going to put some of what I got today in my wife's subaru. As soon as the Amsoil AFL 5w-40 in my 4.0 XJ hits 10k I am putting GC in it, which should be in a few weeks. Analysis results would be mid spring for the GC at 10k. I have been putting about 1k/week on my Jeep, so oil testing is a snap. Don't get me wrong, I am very impressed with the AFL, but I want a 0w for the -15°F cold starts, and the GC is a better deal than the Amsoil 0w30 for 10k drains.

pitzel · Oct 26, 2004

quote:

Originally posted by Patman:
Originally posted by Audi Junkie:
I think he meant $300, not $3000.

Definitely $3000. It costed me close to $1000 Canadian (+ labour) to have a UOA done on transformer oil, at our corporate bulk rate (former employer had several hundred large high voltage transformers installed), and that doesn't even go into any major spectroscopy of actual oil constituents.

sir slack-a-lot · Oct 26, 2004

Hey Pitzel,

Was your former employer SaskPower?

Audi Junkie · Oct 26, 2004

$3000, wow! I thought the nuclear magnetic resonance thingy was $300.

Bobert · Oct 26, 2004

I had a similar experience with GC as 97tbird. Cold starts just made me cringe, and frankly I was scared to turn the key to the hear metallic clanking sounds. After I added 7 ounces of this to GC, everything was peachy.

Even though everything is fine now, I'll be switching to something else. GC is not for every motor.

97tbird · Oct 26, 2004

quote:

Originally posted by Bobert:
I had a similar experience with GC as 97tbird. Cold starts just made me cringe, and frankly I was scared to turn the key to the hear metallic clanking sounds. After I added 7 ounces of this to GC, everything was peachy.

Even though everything is fine now, I'll be switching to something else. GC is not for every motor.

I think more people need to be aware of this. Just because GC does very well in some engines, one should be careful not to give the "go ahead" without even knowing what type of engine it's going to be in. people who ask about this oil GC almost always get the the go ahead in 2 seconds without any info about their vehicle, mileage, driving conditions etc, etc., and it's misleading IMO. I've noticed several people complaining about bad start up noises with GC, so there can be other oils which might perform far better than GC in these specific engines. my UOA with GC was OK in most areas, but had elevated Cu Pb, which several members here commented on, so I'm still on the look out for the best oil for my car...and have a lot of hope in the new MC 5/30...

blupupher · Oct 26, 2004

quote:

Originally posted by 97tbird:

quote:

Originally posted by Bobert:
I had a similar experience with GC as 97tbird. Cold starts just made me cringe, and frankly I was scared to turn the key to the hear metallic clanking sounds. After I added 7 ounces of this to GC, everything was peachy.

Even though everything is fine now, I'll be switching to something else. GC is not for every motor.

Click to expand...

I think more people need to be aware of this. Just because GC does very well in some engines, one should be careful not to give the "go ahead" without even knowing what type of engine it's going to be in. people who ask about this oil GC almost always get the the go ahead in 2 seconds without any info about their vehicle, mileage, driving conditions etc, etc., and it's misleading IMO. I've noticed several people complaining about bad start up noises with GC, so there can be other oils which might perform far better than GC in these specific engines. my UOA with GC was OK in most areas, but had elevated Cu Pb, which several members here commented on, so I'm still on the look out for the best oil for my car...and have a lot of hope in the new MC 5/30...

I agree. I am trying it in my Hyundai 2.0 engine. I resisted the urge to buy bulk amounts of it till I run it and see if the motor likes it. Will be doing a UOA @ 7500 miles and see how it does.

haley10 · Oct 26, 2004

I love GC so far in the GM 3800 V-6, but I have no plans to try it in the Ford modular.

I've never recommended it to anyone with a new Ford modular or Honda that specs. 5W-20.

Thomas Pyrek · Oct 26, 2004

I was going to say coffee... but then I saw that you limited it to engines. So I retract that statement.

Gary Allan · Oct 26, 2004

quote:

As soon as the Amsoil AFL 5w-40 in my 4.0 XJ hits 10k I am putting GC in it, which should be in a few weeks.

Yes ..the number is growing!! Can this be the vanguard of a mass migration of the entire jeep owning membership?? Will the ranks that use the "heavy weights" be pushed into glorious obsolessence ..like the Saturn 5 booster, the Oldsmobile VistaCruiser, and Iowa class battle ship???

Will all my work and reasearch have been outpaced, overtaken and laid to waste?

(visions of Richard Nixon's interview when he lost to JFK "Well, you won't have Richard Nixon to kick around anymore"

)

What not to put GC in??

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