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| 04-05-2026, 01:37 PM | #45 | |
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It's so new that I could not find it anywhere, but at Auto Zone..not even at Advanced Auto, Walmart, etc....only Auto Zone. I buy lottery tickets about 5-6 times a year...so I do not mind spending $13 for a bottle. I am not sure what science is behind the claim cited that one bottle "engineered to remove up to 100% of deposits" which implies 100% results. Albeit that wording could mean technically anywhere from 1% to 100%. Curious to read up more about the industry standard testing method used for that specific claim. However, I do trust their R&P oil that I am using for about 7K miles now, and $13 is for my engine has a better chance to do something good vs me winning the lottery with $13 worth of lottery tickets.
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| 04-05-2026, 10:19 PM | #46 | |
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There's a member on BITOG that is running his own independent test to see if it's worth it (Post 231 in that thread). He's got some solid baseline photos of the cylinder head and pistons on his 2.7 Ecoboost before adding the R&P fuel treatment. It's already been running R&P oil for over a year and 15k miles so if it's gonna produce any visible results, he's got probably the best setup for it as an enthusiast right off the bat. ![]()
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| 04-06-2026, 12:10 PM | #47 | |
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Will definitely monitor that baseline you linked... Since this product came on market just this year...more and more third-party opinions/experiences will be showing up.
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| 04-07-2026, 02:21 AM | #48 | |
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but i dont know if this its a valvoline thing or a european thing about this oil. there are rumors that valvoline will produce soon a bigger grade R&P oil,10-30,probably with bigger HTHS. maybe this oil will face our market too. probably has to do with ACEA requirements about oils,maybe not. |
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| 04-07-2026, 02:26 AM | #49 | |
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so it might be a good idea to drive more often at highway and an oil temp menu from BC while you do that,to check how hot that oil is while driving. |
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| 04-07-2026, 02:30 AM | #50 | |
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| 04-07-2026, 08:34 AM | #51 |
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It will probably be combined. BMW is already doing this with the B58. I doubt there will be a return to purely port injection. You would have to buy an 15 year old BMW to get that.
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| Yesterday, 10:02 PM | #52 | |
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. Good choice and glad they are doing that. I am sure that GDI 's lack of cleaning the valves et al may have been the main reasons for the hybrid "compromise" since it's not cheap to retool an entire engine product line.
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| Today, 07:11 AM | #53 |
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As someone here wrote, I use this (plus Top Tier gas and OEM (or better) oil) and see it as ‘taking vitamins’ or buying the lotto ticket. 65k miles now on a B58.
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| Today, 08:12 AM | #54 | |
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| Today, 09:07 AM | #55 | |
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Key Reasons for the Return to Dual Injection (Bosch): Improved Combustion and Lowered Emissions: Bosch indicates that combining DI and PFI provides superior control over the air-fuel mixture across various operating conditions (partial to full load). Port injection excels at homogenization at low speeds, while direct injection is used to increase the knocking limit at high loads. Operating Strategy Optimization: The two systems work in a "division of labor," reducing fuel consumption and emissions. Intake Valve Cleaning as a Secondary Benefit: While not the primary driver in Bosch’s technical descriptions of the partnership, the PFI system does spray fuel into the intake manifold, which cleans the intake ports and valves, allowing for higher exhaust gas recirculation (EGR) rates without penalty. Addressing Deposit Concerns via Fuel: Bosch addresses deposit issues primarily through the recommendation to use high-quality fuels with appropriate detergent packages.
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