Search results

I've experimented with different grades on my 1999 Lexus GS400. With Mobil 0W-40 it was quiet but it felt lethargic and the Mpg went down some. With Mobil 5W-30 EP it was livelier and got slightly better mpg. With Mobil 0W-20 AFE the mpg was essentially the same as the 5W-30 but the engine felt...

Originally Posted By: dishdude I guess it's regional, around me the lowest priced stations are Top Tier. Just got back from Costco, $1.95/gal It is definitely regional. Here in Oklahoma TopTier fuel is just as cheap as the normal fuel and so it is an absolute no-brainier to use TT fuels. Now...

Originally Posted By: Jus10000 I'm new here, but this is exactly the topic that led me to this forum. Does anyone have hard data or just informed/experiential opinion on if those brands of gasoline that advertise as "better" than Top Tier are actually beneficial? I get that the EPA sets...

Originally Posted By: wemay http://www.autoguide.com/auto-news/2012/12/which-gas-stations-sell-the-best-quality-gasoline.html To earn Top Tier certification a fuel must pass four tests – deposit control on intake valves, fuel injectors and combustion chambers. Beyond that it must also prevent...

Thanks for the update. I am also using an HM oil for a leak and consumption issues, interestingly enough, also on a Dodge Grand Caravan (3.8 liter). The leak seems to have slowed down significantly but the consumption issue continues. I just bought some 10W-30 HM (the vehicle recommends 5W-20)...

Originally Posted By: Garak Originally Posted By: turboseize My 2cts regarding V-power: it's fun, but it's not cost effective. Here, we're lucky, as it were. Premium from most places costs the same. So, getting a Top Tier fuel like Shell's doesn't cost any more than a premium from an...

Once you switch to synthetic, you can never go back to conventional oil. Ditto with high mileage oil.

Originally Posted By: edhackett Originally Posted By: Vikas Are you telling us that manufacturer will go through all the certification, publish all the specifications for standard octane and then deliver better performance, better fuel economy if you just happened to put premium octane in that...

Originally Posted By: priler I would say it's the opposite of what everyone else is saying. it's additive that was never properly mixed to begin with and then congealed a little more,not the other way around where it separated. it's probably the VII. X2

Since we are on the topic, Conoco/Phillips 66 has 3 times the detergent level of the minumum federal standard: http://www.phillips66gas.com/performancegas/ Also, as of 2014, Costo has 5 times the amount: http://www.costco.com/kirkland-signature-gasoline.html I know that there have been...

Here is a link stating the Shell Nitro+ has 7 times the detergent level of the minimum federal standard: http://www.shell.ca/en/products-services/shell-for-drivers/fuels/shell-vpower.html

Here is a link on the 87, 89, and the old V-power (towards the end of the article): http://www.autoblog.com/2014/02/21/shell-technology-center-top-tier-gas-video/ I must apologize because the 87 and 89 octane is x 2 and the 91 V-Power is x5 of the minimum federal standard and not the Top Tier...

Originally Posted By: slacktide_bitog Try Maxlife synthetic, M1 HM, or the new PPHM. Otherwise, stick with Edge, because a quart every 4000 isn't a big deal at all, and that's actually better than many engines that don't leak! X2 Don't use AFE to stop or slow down a leak. A 10W-40 would...

Originally Posted By: jk_636 thanks for all the input. Looks like no one is really sure what the differences are. Whatever they are I'm sure it is just as good if not better than the old formula. The old Shell V-power had x5 the detergent level of the minimum Top Tier standard. Shell's 87...

I am also one of those that will confirm that my 1999 GS400 doesn't use any perceptible oil ACCORDING to the dipstick, and I do a yearly OCI in this V8. I initially thought this thread was about how it was disadvantageous that your engine burns no oil, if you do really long OCI's

Originally Posted By: Joenpb Not even sure Nitro+ has a different formulation from V-Power. Even if it does, I'd expect the difference to be minute. I thought that the difference was that the 87 and 89 Shell octane has x2 the detergent level of the Top Tier standard and that the 91 octane...

My Lexus GS400 also doesn't burn any oil, and I do a yearly OCI (usually around 7,500 miles). My 2006 3.8 liter Grand Caravan, on the other hand, has started to drink oil. It also has a leak and so it is difficult to measure which is more culpable. I just switched from 0W-20's to a high...

I recently switched to 5W-30 Valvoline HM Maxlife full synthetic. I have a minor leak in one vehicle and a bigger leak in the other and so I am hoping that it either really slows down the bleeding or eliminates it. Apparently the leaks are coming from the valve cover. They say it can take up to...

If the auto manufacturer allows for thinner oils and then go for it---the protection will be fine. Otherwise, I would hesitate. In my Lexus GS400, I have experimented some in that V8. I ran Mobil 0W-30, then Mobil 0W-40, and then Mobil 0W-20---all yearly OCI's. On the 0W-40, the V8 was quiet...

Thank you Doug, Stelth, and Turtlevette---very informative!