Castrol GTX or Mobil Clean 5000
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I run the cheapest conventional 5w30 oil, cheapest filters, at 7-10k service intervals for mostly city driving, 1-3 mi trips in the Saturn. No sludge that I can see, only a light to medium coat of varnish.
Make-up oil, of course, about 1 qt every 2-2.5k.
Dad's van, 6 qt sump, 2.2ltr Toyota van gets 7-10k OCI on conventional 10w30 as well. 15mi one-way commute to work daily. Always kept full.
But if you look closer at ExxonMobil's guarantee, it WILL say to follow the OEM drain interval, regardless of what the label says, if the vehicle is still under warranty. ALL oil manufacturers will warranty their oil for the OEM drain interval, regardless of what the label may say. So if your GM OLM goes up to the maximum 12.5k/1-yr, they will certainly back the oil to that distance.
Make-up oil, of course, about 1 qt every 2-2.5k.
Dad's van, 6 qt sump, 2.2ltr Toyota van gets 7-10k OCI on conventional 10w30 as well. 15mi one-way commute to work daily. Always kept full.
But if you look closer at ExxonMobil's guarantee, it WILL say to follow the OEM drain interval, regardless of what the label says, if the vehicle is still under warranty. ALL oil manufacturers will warranty their oil for the OEM drain interval, regardless of what the label may say. So if your GM OLM goes up to the maximum 12.5k/1-yr, they will certainly back the oil to that distance.
Exactly- why doesn't everyone here recomend Mobil 5000? as we all know- all dino is the same,so there all good. And this one promises you 5k intrevels!!! from a reputable company!!! so you know it's good! Why? Why do none of the bitogers recomend this oil to all the dino users with questions? especially if you run short oci; your changing oil good for 5k at 3k! I want to see a dino- heck ill do it providing someon suplly the cash for the test- i'll supply the oil. I want to see OCI at 5k for: Mobil clean 5000 & Castrol GTX both 10w30- both ran under exact same circumstances.
Because I don't believe it's all it's cracked up to be! The SL version, in my estimation, was the dino that had the most consumption issues from my reading here. No, that's not scientific, just my observation.
GTX? When have you seen someone say "Oh, that GTX was awful, instead I used brand X..." I don't recall that ever happening. The used oil analysis are quite good for GTX as well.
Personally, I don't like Mobil using Na as an additive. Chevron/Havoline, Castrol, etc have SM-based formulas without Na that provide great results. Why does Mobil need to be different in their dino offerings? ...and what does it offer over the competition's offerings? Nothing IMO.
Lastly, the whole "Mobil 5000" and "Mobil 7500" are purely marketing gimmicks. Will we see "Pennzoil 5000" or "Valvoline 7500"? Doubt it.
how are they gimicks- they promise you that 7500 last 7500 and that 5000 last 5000. I dont see competitors making that promise on there dino- or semi synthtic. I don't really care if mobil uses sulfur- so long as the used oil analysis on it are better than the competitors.
I can kinda see where some would see Mobil's marketing as a gimmick. Most SM rated dinos can easily do 5000 miles, and even up to 7500. Mobil is getting unknowing customers excited that their oil can go 5000 or 7500 miles, while neglecting to tell them that is nothing really special nowadays (I know it's not their responsibility to tell them, but they're still blatantly playing on the average customers lack of knowledge). To me, that is a little sleazy and under-handed.
I also do not like Exxon-Mobil's latest earnings. The company profited $10.3 some billion last quarter. That's a profit of about $3.5 billion a month. And I'm paying $3 for a gallon of gas? BP earned $7 billion in the same time period. So no oil company is on my favorite company list. I understand they're businesses designed to make money, but there needs to be a little compassion. I am normally extremely conservative and believe in a small government, but I would support the government capping profits on gasoline. Gas has become a necessity in today's society, just like water. While I'm getting poorer spending $3/gallon for gas on a disabled vets limited income, the oil company execs are getting exceptionally rich off the poor who must buy their product to even make it to work (public transportation is not available where I live). Not only that, but the cost of everything must rise in order for other companies to pay their transportation costs.
Since Mobil has the highest net profits, I'm boycotting their products. Maybe if I stop buying their gas and oil, I'll hit them where it hurts. So I'd have to choose Castrol for the original question.
Besides, I've used Castrol GTX for years with very good results. I used Mobil 1 5w30 for 2 OCI and had poor used oil analysis. And it makes my Maxima louder compared to GTX and especially GC, but this was the tinner Mobil 1 5w30 of several years ago.
Anyways, those are my scientific reasons for choosing GTX. But in reality, either would probably do very well for 5000 mile OCI's.
Dave
I also do not like Exxon-Mobil's latest earnings. The company profited $10.3 some billion last quarter. That's a profit of about $3.5 billion a month. And I'm paying $3 for a gallon of gas? BP earned $7 billion in the same time period. So no oil company is on my favorite company list. I understand they're businesses designed to make money, but there needs to be a little compassion. I am normally extremely conservative and believe in a small government, but I would support the government capping profits on gasoline. Gas has become a necessity in today's society, just like water. While I'm getting poorer spending $3/gallon for gas on a disabled vets limited income, the oil company execs are getting exceptionally rich off the poor who must buy their product to even make it to work (public transportation is not available where I live). Not only that, but the cost of everything must rise in order for other companies to pay their transportation costs.
Since Mobil has the highest net profits, I'm boycotting their products. Maybe if I stop buying their gas and oil, I'll hit them where it hurts. So I'd have to choose Castrol for the original question.
Besides, I've used Castrol GTX for years with very good results. I used Mobil 1 5w30 for 2 OCI and had poor used oil analysis. And it makes my Maxima louder compared to GTX and especially GC, but this was the tinner Mobil 1 5w30 of several years ago.
Anyways, those are my scientific reasons for choosing GTX. But in reality, either would probably do very well for 5000 mile OCI's.
Dave
OK. Then show everyone where the used oil analysis are, as you stated, better than the competitors.
TnS, I think he wanted to make a qualified statement, not that the C5000 used oil analysis were better, just the "if" was missing.
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