Anybody use Castrol GTX motor oil?

Breakout · October 11th, 2009, 11:33 AM

I've been using Castrol GTX oil in my car for about 20,000 miles. Everything I hear is great about it. What oil do you guys feel gives the best bang for the buck? Castrol GTX says it's additives reduce engine wear, just like synthetics do. Thoughts?

ReverendDexter · October 11th, 2009, 11:52 AM

It's what I use in the engines I care about, but don't need Mobil 1.

StangGTR07 · October 11th, 2009, 12:35 PM

I use Castrol GTX in my truck and 87 MCSS. Castrol Syntec for the Mustang. We only use GTX at work for everything except for the newer vehicles that came with Mobil 1

Luis_GT · October 12th, 2009, 07:53 AM

never tried Castrol... but then again, my car asks for full synthetic...

Breakout · October 12th, 2009, 07:56 AM

Originally Posted by Luis_GT

never tried Castrol... but then again, my car asks for full synthetic...

castrol GTX isn't synthetic, but heard it's just as good as synthetics. I'm contemplating switching to mobil 1 synthetic...just curious as to everyone's opinions.

Sirl · October 12th, 2009, 08:24 AM

Regular motor oil breaks down much sooner than synthetic.

There are tons of independent studies that show that synthetic oil does not breakdown for upwards of 20k miles..

I use Mobil 1 in all my cars simply for the fact that I can go 7-9k miles between changes.

Dodge Viper, Corvettes, ALL Porsches and many others recommend Synthetic oil and thats what they come with.

Thats good enough for me.

That being said, years ago, I used to use GTX. Never had any issues with it.

dannyboy281 · October 13th, 2009, 03:33 AM

i know my dad uses castrol gtx for his work trucks and they are used everyday around the city with no problems.... he uses mobil 1 clean 5000 or 7500 on his work/personal truck and its also great.... i used to use castrol syntec full synthetic on the mustang and on my previous car which was a 3000gt but recently changed to mobile 1 full synthetic im liking.... it not sure if i can say its really all that better than the syntec because they both hold up great but i hear better things about mobile 1 and decided to switch

ReverendDexter · October 13th, 2009, 09:17 AM

If you're seriously interested in oil comparisons, there is no better source of information than BobIsTheOilGuy.

October 11th, 2009, 11:33 AM	#1
Breakout Tree Fiddy Z 2006 Nissan 350Z Join Date: Dec 2006 Location: Central Florida Posts: 1,749	Anybody use Castrol GTX motor oil? I've been using Castrol GTX oil in my car for about 20,000 miles. Everything I hear is great about it. What oil do you guys feel gives the best bang for the buck? Castrol GTX says it's additives reduce engine wear, just like synthetics do. Thoughts?

October 11th, 2009, 11:52 AM	#2
ReverendDexter Devil's Advocate 1990 GT 'vert Join Date: Jan 2007 Location: Santa Rosa, CA Posts: 4,880	It's what I use in the engines I care about, but don't need Mobil 1. __________________ Assume that whenever I'm talking tech that I'm not talking about going in straight lines, and my posts will make much more sense. O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

October 11th, 2009, 12:35 PM	#3
StangGTR07 Enthusiast 2007 Mustang GT 5 speed Join Date: May 2009 Location: Alabama Posts: 839	I use Castrol GTX in my truck and 87 MCSS. Castrol Syntec for the Mustang. We only use GTX at work for everything except for the newer vehicles that came with Mobil 1 __________________

October 12th, 2009, 08:24 AM	#6
Sirl Enthusiast 2000 Join Date: May 2008 Location: Ft. Lauderdale, FL Posts: 513	Regular motor oil breaks down much sooner than synthetic. There are tons of independent studies that show that synthetic oil does not breakdown for upwards of 20k miles.. I use Mobil 1 in all my cars simply for the fact that I can go 7-9k miles between changes. Dodge Viper, Corvettes, ALL Porsches and many others recommend Synthetic oil and thats what they come with. Thats good enough for me. That being said, years ago, I used to use GTX. Never had any issues with it. __________________ PCA Driving Instructor www.RaceCarTowHooks.com My Track Videos http://www.youtube.com/user/Msirlin My Garage page: http://www.moddedmustangs.com/forums...-member-17090/

October 13th, 2009, 03:33 AM	#7
dannyboy281 Enthusiast 2004 Mustang GT 40th Aniv coming soon Join Date: Mar 2009 Location: El Paso, Tx Posts: 766	i know my dad uses castrol gtx for his work trucks and they are used everyday around the city with no problems.... he uses mobil 1 clean 5000 or 7500 on his work/personal truck and its also great.... i used to use castrol syntec full synthetic on the mustang and on my previous car which was a 3000gt but recently changed to mobile 1 full synthetic im liking.... it not sure if i can say its really all that better than the syntec because they both hold up great but i hear better things about mobile 1 and decided to switch __________________ Accufab Upper Plenum & 70 mm Throttle Body, SLP Long Tubes, SLP Catted X-Pipe, SLP Loudmouth Catback, 91 Octane SCT-X3 Tune, K&N FIPK, Pro 5.0 Short Throw, Mach 1 Grill Delete & Chin, 18" Cobra R wrapped in Nitto 555's

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October 13th, 2009, 09:17 AM	#8
ReverendDexter Devil's Advocate 1990 GT 'vert Join Date: Jan 2007 Location: Santa Rosa, CA Posts: 4,880	If you're seriously interested in oil comparisons, there is no better source of information than BobIsTheOilGuy. __________________ Assume that whenever I'm talking tech that I'm not talking about going in straight lines, and my posts will make much more sense. O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

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