New Castrol GTX Full Synthetic?

[SR5]

Magnatec .... the best one I used was the original rollout, semi-synthetic,

Same here, I'm running the full synthetic Magnatec 5W30 right now, but I preferred the Magnatec 10W30 semi-synthetic.

 

[Klarque420]

In 5w20 flavor, it has a flash point of 206 C

Thats low for my likings and is in line with most of the Pennzoils also.

 

[addyguy]

I just love the silver bottle and label….if it makes it up here I might use it just for that!

 

[PolarisX]

That said, I would choose the Castrol Edge over the Castrol GTX Full Synthetic without hesitation. Lower VII content (= less deposits), thicker base oil (= less engine wear), lower ash content (= less deposits on valves and emissions), and lower Noack (= less oil consumption) are wins in all these aspects. The only advantages of the GTX Full Synthetic are possibly slightly better fuel economy due to higher viscosity index (VI) resulting from high VII content and slightly easier cranking at extreme cold.

They might have introduced the GTX Full Synthetic because they had an extra supply of the thinner Group III base stock (4 cSt), and they wanted to get rid of it. They probably had to add extra detergent (ash) to control the deposits caused by the grossly increased VII content required by the thinner base oil.

They introduced it for your uncle who only buys Castrol when it comes in a white bottle and says "GEE TEE EX" on it. This is all marketing and going after a very certain segment.

 

[Gokhan]

Now we have Mobil (not 1), Pennzoil (not platinum) and Castrol (not Edge) synthetics.

We have?? I haven't been following the oil products lately.

Interestingly, Mobil Full Synthetic 5W-30 has virtually identical KV40, KV100, and density specs as the Castrol GTX Synthetic 5W-30, meaning that they are both high-VII-content, thin-base-oil oils. I wonder if this has to do with the fuel-economy requirements of ILSAC GF-6. Mobil Full Synthetic is one of the very few dexos1 Gen 3 oils—so far.

 

[addyguy]

Interesting you note this - ran Mobil full-synthetic last winter in my G5. It got noticeably ‘louder’ towards the end of the OCI, possibly showing shear-down from the engines timing chain.

 

[PolarisX]

We have?? I haven't been following the oil products lately.

Interestingly, Mobil Full Synthetic 5W-30 has virtually identical KV40, KV100, and density specs as the Castrol GTX Synthetic 5W-30, meaning that they are both high-VII-content, thin-base-oil oils. I wonder if this has to do with the fuel-economy requirements of ILSAC GF-6. Mobil Full Synthetic is one of the very few dexos1 Gen 3 oils—so far.

I think they actually took that off its page on the website. I went to check the other day and it was only Gen2, not 3 anymore.

 

[IndyFan]

I'm surprised Valvoline hasn't come out with an entry-level yet..

They have one. It is called Napa. LOL!

 

[Gokhan]

I think they actually took that off its page on the website. I went to check the other day and it was only Gen2, not 3 anymore.

Currently, AC Delco, Mobil Super, and Mobil 0W-20 and 5W-30 and and Performance Plus by Kleen 0W-20 and 5W-20 are dexos1 Gen 3.

dexos®1 Gen 3 | GM

 

[PolarisX]

Currently, AC Delco, Mobil Super, and Mobil 0W-20 and 5W-30 and and Performance Plus by Kleen 0W-20 and 5W-20 are dexos1 Gen 3.

dexos®1 Gen 3 | GM

They said Gen3, then Gen2, now do include Gen3 again. It was literally two days ago I went to see if the others had Gen3 yet, and was baffled it was missing and back to only Gen2.

Today it says Gen3, who knows what tomorrow will bring.

 

[aquariuscsm]

Castrol Syntec
Valvoline Synpower
Pennzoil Platinum

You gotta admit, they had the best trademarked names in the business!!

 

[wemay]

Castrol Syntec
Valvoline Synpower
Pennzoil Platinum

You gotta admit, they had the best trademarked names in the business!!

Yes, Synpower was another favorite of mine.

 

[SR5]

Yes, Synpower was another favorite of mine.

It's still called Synpower in Australia. Yes, I like the name too.

 

[ARCOgraphite]

Sounds like you have a newer edge mine is a 13 with a 3.5 I was using Valvoline maxlife synthetic blend. For the first 80000 miles the original owner used Motorcraft synthetic blend. Then around 90,000 I switched it over to maxlife, just recently couple hundred miles ago, I put the Kirkland's in it, runs quieter and smoother.. it's always ran good.. it's running even better now..

I don't have an Edge CUV, I have newly installed Edge oil in my Indian Ford Ecosport 2.0 Litre AWD.

-------- Look in my signature line below vvv

 

[53' Stude]

They have one. It is called Napa. LOL!

 

[DGXR]

CharlesInCharge is 7x better at interpreting and seeing thru marketing nonsense, and 1.4x better at refusing to be fleeced of his hard earned money!

(But 6x, and 1.4x, "better," than who or what?)

DGXR is laughing 2.9x harder as a result of the humor benefits provided by this comment.

 

[MalibuRam65]

Currently, AC Delco, Mobil Super, and Mobil 0W-20 and 5W-30 and and Performance Plus by Kleen 0W-20 and 5W-20 are dexos1 Gen 3.

dexos®1 Gen 3 | GM

Nobody seen these oils in the wild yet?

 

[ChrisD46]

Castrol Magnatec is my super elixir additive to my regular synthetic oil fill ( 16 oz. ~ 32 oz.)

 

[53' Stude]

I’ll stick with EDGE

 

[ARCOgraphite]

Nobody seen these oils in the wild yet?

So gen2 that just came out is no good?
It appears we are the guinea pigs for changing oil spec and engine designs.
I am in the D.I. underworld currently.