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Hi, I have a water pressure tank with a bladder on the inside. The bladder is made of a gum-like material called butyl. Over time the bladder can break because it folds always at the same places when expanding and retracting. Therefore I'd like to apply some lubricant on it to "feed" the gum as...

Hi, I must change an exhaust mid silencer on a Volvo S40 due to rust. I found a used silencer in good external conditions from a wreck. The silencer feels solid but when I shake it vigorously I can feel and hear something slightly banging inside it. I know that internal parts can come loose due...

Hi, I have a 2007 Honda Fit (Jazz) with Continuously Variable Transmission (CVT). The car has 25000km now and I just changed the gearoil with fresh fluid. The dipstick has cold and hot marks to check the level. Honda recommends to check the gearoil level within 60-90 sec after engine is shut...

Hi, I got a new fuel pressure gauge and checked the fuel rail pressure on my 1997 Volvo S40 2.0 petrol (200K miles). This is a normally aspirated engine, not the one available in US. First I released the pressure from the rail before fitting the gauge. Then I turned the key on ignition II to...

Hi, I just bought a vacuum gauge and tested the manifold vacuum on my 1997 Volvo S40 2.0L petrol engine (normally aspirated). This engine is a 4cyl 1998ccm with 140hp and has now 335000km (208K miles). I brought the engine to operating temp and then hooked up the vacuum gauge on a free inlet...

Hi, my car (1997 Volvo S40) has a nipple connector on the fuel rail to check fuel pressure. That nipple is exactly the same as the one on tires. Since I have a tire pressure gauge on my air compressor, I was wondering whether it would be possible to check the fuel pressure SAFELY with that tire...

Hi, I'm interested in polishing my car using a buffer tool. The techniques usually involves some wet sanding first, then polishing with some compound (2 grades usually) and then finally waxing the car. I've seen some videos and howtos with Meguiar's stuff and it looks really good. However this...

Hi, I'm really worried by gearoil specification requirements in some european vehicle applications. Look at these 2 oils made by Elf for manual transmissions (sorry in french, cannot find it in english): TransElf NFJ:http://www.lubadmin.com/upload/produit/FichePDF/lang_1/7194.pdf TransElf...

Hi, I'm about 1900 miles in the ARX cleaning phase and my lifters started making a very loud noise when cold. The noise does really comes from the hydraulic lifters and occurs at every cold start now, but the noise dissappears in about 1-2min after startup. Now I'm a bit surprised because I've...

Hi, I own a 1997 Volvo S40 with a manual transmission (FWD, gearbox is french made by Renault...). The car has 330'000km (200K miles). I seem to get a slight whining noise, especially in 4th and 5th gear that appears related to vehicle speed. The noise is very similar to electric...

Hi, I'm comparing two 75W80 API GL4+ manual transmission lubricants. The two are very similar in term of kinematic viscosity at 40 and 100°C but there is a difference in the brookfield viscosity: Oil n°1: 44000 mPa.s (cP) at -40°c Oil n°2: 25000 mPa.s (cP) at -40°C What is exactly the meaning...

Hi, I was just wondering whether it would be a good idea to use a seal conditioner additive in a high mileage engine to prevent the seals from getting brittle. My Volvo has 200K and does not leak a drop of oil. However I cannot get a high mileage oil in 5w40 flavour over here and I need this...

Hi all, hopefully thanks to BITOG I have some understanding of the meaning of oil grades. Basically a 10W40 oil has the viscosity of a SAE40 at 100°C with some kind of cold pumpability performances corresponding to 10W. A 5W40 will also be a SAE40 at 100°C but will have better pumpability when...

Hi, I got some ARX bottles back in 2006 and want to use one now. On the bottle, the cleaning and rinse phases mentionned are shorter (-1000miles) than those recommended on the current ARX website for basic application. Cleaning phase: ARX bottle: 1500miles Website: 2500miles Rinse phase: ARX...

Hi, the HC7 oil is a hydrocracked oil (groupIII???) in 5W40 flavour. I'm looking for a good oil in my high mileage 200K miles Volvo engine (non turbo) for Switzerland so I've been recommended to go with 5W oils (currently running Mobil Super S 10W40 with some tappet noise in winter when cold)...

Hi, I found this here: http://www.widman.biz/uploads/Corvair_oil.pdf (page 19) "You should not pre-fill the filter unless you do it from the outer ring holes. Any oil that goes into the center will reach the engine unfiltered (and there is no cleanliness standard for new oils)." Does this...

Hi all, I did get several suggestions of oil grades for my old Volvo engine (atmo) with over 200K: 0W40, 5W40 or 10W40. I do understand the differences between these grades and the fact 0W and 5W appear "better" for cold starts and winter. However although all these oils are SAE40 when hot...

Hi, in terms of engine wear or oil breakdown, is there a significant difference between 2 10w40 semi-sythethic oils, one being 13.7 cSt and the other 14.4cSt at 100°C? I'd like to compare performaces of Valvoline MaxLife 10w40 (14.4 cSt at 100°C)and Liqui-Moly super low friction 10W40 (13.7...

Hi, I'm still trying to find a good oil for my 1997 Volvo (atmospheric engine) with 200K miles on it. Currently I run on Mobil Super S 10w40. The engine has no leak but I does burn a very small amount of oil, especially when driving in the Alps (higher oil temp). So a few questions: - Do you...

Here is the link to this famous article that is supposed to prove that (at least some) oil additives are bad: http://www.bobistheoilguy.com/images/lucas/lucas.htm I found this article very informative but I have a few remarks/questions about it: 1) In the beginning one compares a 80W90 blend...