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Modern door seals (are they even rubber anymore? My guess would go to polymer based materials?) Some say silicone is good - protects and cares, others say stay away from silicone.... Meguiars Ultimate Protectant? (UV clear coat technology)? 303 aerospace? silicone spray? I would like a...

I have a 1.6 litre FCA Diesel engine with a variable displacement oil pump, the car is equipped with a DPF and urea NOX system. Factory calls for 0W20 (Acea C2! Try to find an 0W20 C2 oil other than the manufacturers oil!) oil, the same engine the year before (apparently also with a variable...

Hi, I recently bought a new Honda SH125i scooter with Honda's 125cc ESP+ engine. According to the manual it's using 10W30, at least API SG non energy conserving oil. Personally I would like to use 10W40 which a lot of Honda owners of the older generation of these bikes do. A hard working...

Hello, what's your take on diesel additives containing ferrocene? There are research papers out there that say that ferrocene diesel fuel burns better and leaves less soot behind which is beneficial for dpf systems. but what bout engine wear? There's always some diesel in the oil due to...

Hello, I have been researching a bit about ferrocene as a Diesel additive lately. Unfortunately there is not much to read out there on the internet. In theory, the ferrocene is supposed to act as a combustion catalyst as well as a soot catalyst that helps burn the soot to ash at lower...

I recently started to clean up my 10700 squarefeet property. I bought an additional 2 stroke weed eater, house brand from a local hardware store. Manual calls for 1:40, I ran the first tank 1:25 but I got some popping noise under load. I believe that is called "popcorning". I do have 2 Stihl...

Hi, I have an old lawn mower that does the job just fine, except the briggs stratton quantum engine is surging. I disassembled the unit to find that black mixture/speed governor on top of the carburator is constantly moving when the engine is running. If I block it so it can't move the mower...

Hello, see attached picture. What is causing this area of the cylinder to look polished with no cross-hatch remaining visible? Is it lubrication related or mechanical, metallurgy? How comes it's isolated to that area? It's only on this visible side, the opposite site is normal. Is there any...

many years ago - when high sulphur gasoline was still around - Nikasil plated cylidners hat liner issues due to the high sulphur content in the gasoline not working well with plating. Nowadays - at least in europe - there isn't really high sulphur gasoline anymore. But what about high...

Hello, I have a Peugeot Metropolis 400cc single cylinder 3wheeler with dry variomatic transmission. Factory fill: was in the engine from new until I reached 300 miles where I got the first service done. Elf Scooter Maxi City 5W40 was filled in - and I'm now at around 700 miles. Should I...

Most motorcycle maintenance plans and most motorcycle riders change their oil once a year - if the mileage is not reached. If I say ride a 1000 miles and then park it for winter - I would basically throw out good serviceable oil. My thinking is - most of the oil apart from leftover that...

Hi, as we all know almost all motorcycles of today still need periodical valve adjustments. So they aren't hydraulic lifters. But there comes my lack of experience: Are modern motorcycles still flat tappet cam shaft driven or do they rely on roller cams? For example: The Piaggio 125cc...

Hi, Lets start with the information that I never had an aircooled vehicle before, only my hand and push mower are aircooled which do fine on 15W-40 Petro Canada Duron Xl HDEO. My sister just bought her first scooter - guess she's more interested in 2 wheeled vehicles than cars - a Peugeot...

Hi, I have a question about engines that have nikasil plated cylinders, or cylinders that are made of Suzukis SCEM (Suzuki Composite Electrochemical Material) Do these engines need a special oil? I do have in the back of my head, i think it was KTM that they only specified their oil because of...

Hi, I'm an avid user of Motul 300V Factory Line motorcycle oils. From what I've been reading they are really a fully synthetic ester base stock oil. While they do perform great I ran across an interesting section in the safety data sheet which says the following: (Thats for the 300V Factory...

http://www.millersoils.co.uk/automotive/tds-automotive.asp?prodsegmentID=193&sector=Motorsport claims to be able to reduce coolant temps up to 15°C. Some car enthusiast seem very satisfied and reported lower coolant temps via ODB2 readout. What do you think about products like this? Worth it...

Service history of my 2016 Boulevard C50 Bought June 2016, factory oil August 8th 2016 Run in service done at 360miles on the clock. October 2nd, changed to Petro Canada Duron XL 15W40 HDEO at 413 miles on the clock. Current mileage: 861 miles Next service: August 2017, mileage on the clock...

Hi, I recently found something interesting in the datasheet of Petro Canada Duron XL 15W40: The PDS ( http://lubricants.petro-canada.ca/resour...&region=int ) mentions ester content. Now the interesting question is: Is the ester used to mix the zinc content since it's mentioned in the same...

Hi, I often read that car oils are prone to foaming in motorcycle engines, even some motorcycle oils are suspected to foam up. I know a lot of people (me now included) use HDEO oils in their motorcycle. But why are HDEO's not foaming? Do they contain the right amount of anti foam additive that...

Hi guys, I recently asked here in the forums about which oil to use in my '15 Suzuki Boulevard C50. The advice was to take HDEO into consideration - I did. Based on these numbers: Mobil numbers from pqiamerica.com, Motul 300V numbers from VOA here in the forums: Zinc: Motul: 915 Mobil: 1012...