When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Not sure if a marketing gimmick or not, but I've been using Shell Nitro+ premium exclusively in the Vette. For one because it's a top tier gasoline and because of the fuel rewards program saves me a little at the pump.
I'm sure any top tier gasoline should be fine though.
I used to be a Sunoco fan, but there are fewer and fewer stations in our area these days. I now use Shell for the same reasons stated in the above post.
Last edited by macdaddy548; 11-18-2016 at 07:28 AM.
Reason: Typo
A friend of mine worked in the oil & gas industry, and basically what he told me is this:
All gas is the same. It all gets sent through the same pipeline, and the regular gas that Shell puts in (in say, Houston) is not the exact same regular gas that Shell pulls out in NJ. Natch regular is different than premium but they use the same pipeline, and they magically know which is which (my words, not his).
It's all in the additives, that's what makes the difference between brands. That's why I never buy Costco/BJs/Sam's gas - it's the same gas, but you're missing a lot of the detergents and whatnot that keep your injectors and valves clean and happy.
Shell Premium...and only fill on Tuesday's ($.20 off per gal) for the vette!!! Maryland area
I do use Costco 92 for my Infiniti daily driver and truck
All "top tier"....
Last edited by Black Rose-MD; 11-18-2016 at 08:17 AM.
Not sure if a marketing gimmick or not, but I've been using Shell Nitro+ premium exclusively in the Vette. For one because it's a top tier gasoline and because of the fuel rewards program saves me a little at the pump.
I'm sure any top tier gasoline should be fine though.
Ditto on Shell Nitro, but any premium Top Tier fuel will do, which I use exclusively. I also add the appropriate amount of Chevron Techron fuel additive ever 2K miles or so, per the guidance on minimizing the valve deposit buildup characteristic of direct injection engines.
I also add the appropriate amount of Chevron Techron fuel additive ever 2K miles or so, per the guidance on minimizing the valve deposit buildup characteristic of direct injection engines.
Which Techron additive? Went to buy some yesterday and found 2 varieties. One for injectors, the other for fuel systems. Guessing they both are basically the same, but thought I'd ask here first.
Ditto on Shell Nitro, but any premium Top Tier fuel will do, which I use exclusively. I also add the appropriate amount of Chevron Techron fuel additive ever 2K miles or so, per the guidance on minimizing the valve deposit buildup characteristic of direct injection engines.
Won't say you are mistaken but, as I understand it the carbon problem is due to no fuel washing the back of the intake valve. With direct injection the fuel is injected directly into the combustion chamber. Air is the only medium found in the intake track and flowing past the intake valve. Because the PCV system vents into the air stream and that oil mist hits the back of the hot exhaust valve, it cokes and begins to form deposits that will eventually cause problems. Supposedly this is a problem with all gasoline DI engine systems. As for gas, top tier and maybe a can of Techron once a year to keep the fuel tank sensor clean should do it.
Yes, fuel additives will do nothing to clean valves on a DI engine.
Top tier gas to keep the fuel system clean.
I like Shell gas but the Shell stations around here all want $.40 a gallon more than other top tier stations for premium. Regular is the same price but they gouge on premium and do not post the price at the street.
Yes, fuel additives will do nothing to clean valves on a DI engine.
Top tier gas to keep the fuel system clean.
I like Shell gas but the Shell stations around here all want $.40 a gallon more than other top tier stations for premium. Regular is the same price but they gouge on premium and do not post the price at the street.
It's even worse of a spread up here, most of the Shell stations in the Toronto area are selling premium for $1.209 per liter ($4.57 a gallon!) while the Costco stations here are charging only 99.9 cents per liter ($3.78 per gallon, 79 cents less!) I am pretty sure that Shell has a better additive package than Costco, but Costco up here is top tier as well so I know it's going to keep my fuel system clean (and just to be sure I add a bottle of Regane All in One every couple of years)
Yes, fuel additives will do nothing to clean valves on a DI engine.
Every time this subject comes up, a whole bunch of people who haven't read previous discussions pop in and say the same thing. So, here we go again for all the naysayers:
Yes, I'm VERY familiar w/ the DI design and the problem of coking on the tops of valves because they are not washed with fuel additives as they are in port injection.
However, GM says they've addressed the issue in the LT1, and the article mentioned in post 16 above discusses this matter in detail. In particular, GM claims there is some backwash of fuel, as well as other countermeasures to minimize oil mist and alleviate coking. Of course, only time will tell if they were successful.
They also specifically recommend using Top Tier gas exclusively, using Techron periodically, and an oil with the lowest possible NOACK number.
A friend of mine worked in the oil & gas industry, and basically what he told me is this:
All gas is the same. It all gets sent through the same pipeline, and the regular gas that Shell puts in (in say, Houston) is not the exact same regular gas that Shell pulls out in NJ. Natch regular is different than premium but they use the same pipeline, and they magically know which is which (my words, not his).
It's all in the additives, that's what makes the difference between brands. That's why I never buy Costco/BJs/Sam's gas - it's the same gas, but you're missing a lot of the detergents and whatnot that keep your injectors and valves clean and happy.
This is partially true. All gas is the same. Octane levels are different but gas is the same. Any additives are loaded at the time the transport tanks fill the truck. So, regional additives are based on weather, altitude, etc are different ( not better, just different). Nothing magical about it as gas in the actual pipeline does not know 'brand'. Do the additives really work to improve things, I don't know. I've never been able to tell. But, I do know the amount of specific additives is small, about a quart/8000 gallons. You be the judge.
I too worked for a pipeline company for many years. Watched transports getting loaded from storage tanks. I can assure you the storage tanks did not have brand names on the.
11-18-2016, 07:06 AM
Gasoline brand
