DI injectors need cleaning too.although more additives help in other places a DI only engine sprays NO fuel on the valves!!! we need more cars using both types of injection like VW uses ONLY in Europe!!!
I find it funny how the internet is rampant with the hatred for DI, but yet I personally don’t know a single person in real life who has had any issues with DI carbon buildup.although more additives help in other places a DI only engine sprays NO fuel on the valves!!! we need more cars using both types of injection like VW uses ONLY in Europe!!!
The dude probably owns stock in those 3 oil companies.
In case you missed it, the dose for Costco's regular and premium is the same.Costco doses their gas at the pumps. Other brands typically dose at the terminal. Some data sheets have been posted around the internet which indicated changes in dosage as the only difference between regular and premium.
The dosing isn't done by hand but metered from a the and additive tank on site. Probably no different than the dosing equipment at the terminal.One could make the argument that this process generates a higher likelihood for error.
It was not addressed.
Ya I was speaking for other brands (ie. Chevron) not Costco.In case you missed it, the dose for Costco's regular and premium is the same.
Meanwhile I have seen more expensive and higher performance vehicles at Costco than Volvos could ever hope to be....getting fuel....nationwide.
The Service Advisor is full of garbage.
What is Top Tier Gas and Is It Worth It?
Top Tier gas is worth it for some car owners, particularly those who own vehicles that require this type of fuel. Learn more about Top Tier fuels and who needs them.www.autolist.com
I think they dose it at delivery. They have a computerized system that they put how many gal are being dumped and it automatically "doses" that load. An attendant told me if it breaks down they have to hand pump it. It's very thick and they hate doing it. Repair people come out pretty quickly but those pumps are always going. They have a proprietary add pack made just for them by Lubrizol. You can't beat their gas for freshness, additives and price.Costco doses their gas at the pumps. Other brands typically dose at the terminal. Some data sheets have been posted around the internet which indicated changes in dosage as the only difference between regular and premium.
Close, but no cigar. I don't see any reference to the chemical composition of the Cosco additive. I know that if I run Costco gas for a while, then add a jug of a cleaner consisting of PEA, the PEA improves performance. Example: VP Fuels Madditive Cleaner.Here is everything you need to know:
I think they dose it at delivery. They have a computerized system that they put how many gal are being dumped and it automatically "doses" that load. An attendant told me if it breaks down they have to hand pump it. It's very thick and they hate doing it. Repair people come out pretty quickly but those pumps are always going. They have a proprietary add pack made just for them by Lubrizol. You can't beat their gas for freshness, additives and price.
And you'll never get it from Costco because it's not their formula. Lubrizol 9888 aka UltraZol 9888Close, but no cigar. I don't see any reference to the chemical composition of the Cosco additive. I know that if I run Costco gas for a while, then add a jug of a cleaner consisting of PEA, the PEA improves performance. Example: VP Fuels Madditive Cleaner.
They have a separate additive tank buried on site at every location. UltraZol 9888 apparently is the additive.I think they dose it at delivery. They have a computerized system that they put how many gal are being dumped and it automatically "doses" that load. An attendant told me if it breaks down they have to hand pump it. It's very thick and they hate doing it. Repair people come out pretty quickly but those pumps are always going. They have a proprietary add pack made just for them by Lubrizol. You can't beat their gas for freshness, additives and price.
I'm always amazed at the obscure (to me, at least) bits of information that folks here are knowledgeable about. Thanks for posting that.They have a separate additive tank buried on site at every location. UltraZol 9888 apparently is the additive.
Perhaps this will help: http://portlandcleanair.org/files/merge/msds/ULTRAZOL_9888C.PDFClose, but no cigar. I don't see any reference to the chemical composition of the Cosco additive. I know that if I run Costco gas for a while, then add a jug of a cleaner consisting of PEA, the PEA improves performance. Example: VP Fuels Madditive Cleaner.
Perhaps this will help: http://portlandcleanair.org/files/merge/msds/ULTRAZOL_9888C.PDF
Are you saying service advisors can’t invest in oil company stocks and reap some dividends?Blinker -
Really?
Do you honestly believe that service advisor had enough common sense and investment acumen to invest in those three solid dividend paying companies?
Norfolk and Waypal! (Say that REALLY fast).
You mean like what Lexus and Toyota offers?although more additives help in other places a DI only engine sprays NO fuel on the valves!!! we need more cars using both types of injection like VW uses ONLY in Europe!!!
My experience with Costco gas is as follows. I have an 18 Legacy and a 19 Impreza. Both cars have had Costco gas. The Legacy from what I can tell runs just fine. The Impreza, I took to the dealer for its first or second oil change and mentioned that I'm not getting the mileage that I should be and that the car seems jerky. They asked what brand of gas I used and I said Costco and they told me not to use Costco and they have a lot of cars in the shop having issues with Costco gas. This was about 1 1/2 to 2 years ago. So, I switched to BP then Shell and it got better. Not 100% better but better. Now at the present, I took my car in for a fuel pump recall and I mentioned again that the car is jerky and asked them to run some TSB for the CVT trans. The last I heard was one of the logs was weird but they didn't notice anything while driving it. Then I got a txt asking what brand of gas I use. I haven't heard back.
My friend has a 16? WRX and has a COBB access port (I know nothing about this stuff). He told me that he was using Costco gas and it was pulling timing and he switched to Shell and his results were much better.
I am NOT a car expert nor fuel expert. So, I wonder if there is some truth to this issue with Costco gas but for the life of me I don't get why. If it meets the octane requirements AND has the additives to meet the top tier requirements, then why is there an issue?
For the record, I am NOT knocking Costco gas. I use it in my wife's CR-V and my Legacy but neither are DI, only the Impreza is. I have used it in my 2001 S4 too and didn't notice any issues other than what is already wrong with the car.