Fuel in engine oil problem

Diesel in engine oil - long term, should I be concerned?

Hi I have a holden SB barina and am looking to possible reasons as to why I have fuel in my oil and any advice on if its easily fixed or something that may be expensive and quite difficult to fix and if it would be dangerous to drive it in that condition if left as is? There is only a couple of ways fuel can get into the oil. One possibility is that the fuel injection pressure regulator has a leaking valve and it leaking fuel into the vacuum line. Another possible cause is that one of the fuel injectors is stuck open and is leaking fuel into the engine. Have the fuel pressure checked and pull off the vacuum line on the pressure regulator to see if fuel is coming out of the regulator. Replace the regulator and change the oil and filter to get rid of the contaminated oil. You may have to change the oil and filter again after running for about a half hour to get the last of the contaminated oil out of the engine. If you need assistance with this, consider YourMechanic, as one of our mobile technicians can come to your home to diagnose the source of the leak and help you fix the it accordingly. Q: Fuel in oil possible causes asked by Michelle. Jay Safford Automotive Mechanic. Thank Jay. Was this answer helpful? Thank you for your feedback! Sorry about that. Why wasn't this information helpful? Recommended Services. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details. Related Questions. Car running lean by Jane H. Car overheating, rust-like residue leaking out by Abigail C. Car leaking gas and oil by Chloe M. Motor rattles around randomly leaks fluid by Jasmine B. Engine code P and losing oil by Eric. Home Questions. Year I don't know. What others are asking My car is kinda low, i drove over a puddle on my way home amd now it's moist under my car mats why? Is that cause it's too low? The immediate smell also suggests this is not water, but perhaps engine coolant leaking from the heater Read more. Drive belt squealing Hello, if there is a noisy belt, belt condition should be checked to see if the belt are stretched out or dry.

Gas Getting Into Oil – What Can Cause This To Happen ?

If you notice gas mixed in with your engine oil, follow these instructions to address a potential leak. Learn about the latest products, step-by-step instructions on how to locate your engine model number and more. All rights reserved. Explore Our Family of Brands. Change Region. United States. Residential Brands. Commercial Brands. InfoHub Connected Power. Snapper Pro. Billy Goat. Pressure Washers. Snow Blowers. Lawn Mowers. Other Products. Related Links. Find Your Operator's Manual. Support Resources. Dealer Locator. Frequently Asked Questions. Maintenance How-To. Contact Us. User Community. Warranty Information. Why is fuel mixing with engine oil in the crankcase? Fuel float in the carburetor being stuck in the open position due to gumming caused by stale fuel or debris. How do I fix fuel leaking into my engine oil? If your engine has a fuel shut-off valve, ensure that this valve is closed when the engine is not in use. If carburetor problems are causing fuel to mix with your oil in the crankcase, you should perform a thorough cleaning. Oil Removal Kit Lawn Mower Oil - 48 Fl. Fuel Stabil Email Newsletter Sign Up. Sign-up not successful. Please refresh and try again. Thank you for signing up.

Engine Oil Diluted With Fuel (the facts for 2018)

Original Poster. Search My Stuff What's New 3 12 24 Diesel in engine oil - long term, should I be concerned? Prev of 2 2 Next. I bought a new, diesel engined vehicle 2. It's one of this manufacturer's first attempts at DPF technology. Rather than install an extra injector in the exhaust to add the extra diesel for a regeneration of the DPF, they just add more fuel in via the main cylinder injectors and you hear the engine noise change when it's doing it. In addition to this, the ECU had a very aggressive regeneration program - it would regenerate the DPF more frequently than every miles. At best, on a long motorway run, it'll be around miles per regen. The result of these two factors means a significant amount of diesel gets past the rings and ends up mixed in the with engine oil. Apparently, some people have had this get so bad that the engines have ingested the oil via a breather and self destructed! Of course, the manufacturer and dealers are keeping quiet about this issue. I noticed early on that I couldn't seem to get an accurate reading off the dipstick - it was way above the max mark, and I just assumed it was due to the convoluted dip stick route smearing the oil around. The service interval is 12k miles, and at my 24k service they quietly made some changes to improve the issue. There was an ECU update to reduce the frequency of regenerations probably about miles at best nowand a revised dipstick that has 3 marks on it: min, fill max, and an absolute max which is about 2 inches higher than fill max. I guess their thinking is that the oil level shouldn't reach the absolute max in between the 12k services. But what are the likely long term effects of significant amounts of diesel diluting the engine oil? Am I worrying over nothing? Pumaracing 2, posts months. Diesel fuel is a pretty good solvent. Similar to paraffin. It has bugger all in the way of lubricant properties. I wouldn't want much of that in my engine oil.

Q: Fuel in oil possible causes

However, it is normal for a small amount of gas getting into your oil during normal engine operation. Gas getting into oil becomes a cause for concern when the volume of gas exceeds 2. If a large amount of gasoline does get into the engine oil; change the oil immediately upon fixing the problem that has allowed this to happen. A badly adjusted carburetor can send too much gas into the carburetor; and the overflow will eventually wash down the cylinder walls and into your oil pan. This also tends to foul the spark plugs. Thus, one way to check for this problem is to pull one of plugs and look for blackening on it. Cars that are more than ten years old usually have mechanical fuel pumps. Accurately diagnosing this problem requires some specialised testing equipment and needs to be done by a trained mechanic. Driving with a blown head gasket can easily ruin the engine, leading to costly repairs. Your mechanic can run a compression test on your engine; if there is a leak in the head gasket, the compression will be lower than expected. So, The number one cause would most likely be leaking fuel injectors. This takes place when engine is off. Due to pressure on the fuel rail; fuel will push itself down into the cylinder of any leaky injector and gradually drip into the oil pan. But in this case, you will observe that the car would hard start and rough idle; especially when parked overnight; until the dumped fuel in the cylinder clears off. An inoperative injector system can also cause this problem; because if the engine is not firing appropriately; the gasoline will end up running down the walls of the cylinders. Fix any fuel related trouble codes and change your oil; Before starting your engine. So, Any time you realise that too much gas is getting into your engine oil; you should replace the piston rings and then replace the oil. See if this helps the problem, and if it does not; then investigate the many other possibilities as to why the fuel is leaking into the oil. The last thing anyone ever wants to hear are the words, you have a head gasket leak! So, Your vehicle has started overheating and you cannot find the source of the overheating. Engine overheating […]. The valve cover sits on top of the cylinder head and does just what its name suggests; covers the valves. So, The valve cover gasket is what seals this cover to the cylinder head. Most […]. The oil pan gasket; seals the oil pan to the bottom of the engine. So, It is not uncommon for the gasket to wear out and start leaking oil. When a gasket is damaged; oil […]. Most of the images displayed are of unknown origin.

Fuel In Oil With Overfilled Oil Level, Gas Smell In Cabin

Both problems affecting the Honda CR-V's 1. That problem appears to be related to fuel injection which Honda hopes to fix via a software update. CR-V owners also report no heat even after warming up their CR-Vs for 30 minutes — not even enough to defrost the windshield. So far, there has been no fix from Honda for this issue. Ok, here we go. Dealer said Honda will not "fix" it again. So we are either stuck with a car, that if not dealt with correctly ie: change oil every month or so, the possibility of an engine fire is very high. Also, the destruction and deterioration of the engine is a given. We called the dealer, they told us to have the car towed in and that the tow warranty would cover it. The service manager said no, they won't pay for the tow, but don't drive it in because if there is engine damage caused by the problem, warranty won't cover it. I have written to Honda corporate complaining, there is only 3, mile on the thing. I have also joined a class action suit against Honda for their lack of a fix for this dangerous problem. I really like this car, I hate to have to spend more money to go buy another brand. I'd heard about the fuel dilution issue a while back, but since I live in Texas and it's supposedly a cold weather issue, I wasn't concerned. About a month ago I noticed a strange smell in the cabin it was around 70 degrees outside. The next day I checked the oil level and noted it's above the full mark and smells like fuel. Have excess oil dilution in 1. After 7, miles, oil level increased by 1. Afraid oil dilution is changing the oil viscosity and will cause undue wear. Had the Honda product update, doesn't help. Changed the oil myself for the first time. Noticed oil level was high and smelled of gasoline before changing it. Went online to see if other people experieced the same issue. I had no idea how widespread this problem is. I don't live in a cold weather environment. Costal North Carolina here. Cold weather is not the problem, the engine is. I had noticed the strong smell of gasoline in the cabin twice before, didn't pay too much attention at the time. I wonder how many are unaware as I was of the issues with this engine. I guess I will start changing the oil at much more frequent intervals, cheaper than taking the hit of trading this lemon in. I was a Honda service manager and in the auto repair business for 38 years before retiring and have purchased nothing but Honda vehicles sinceso I know how to check oil and what fuel smells like! My Wife and I as well as one of my sons bought CR V's and experienced the high oil level and fuel smell dilution problem from the first week and have more or less been told by American Honda to live with it. By the way we live in Georgia not one of the "cold weather states" that Honda says is the only way the problem occurs and as I stated my wife was driving the vehicle 50 miles one way to work so the short distance thing is bogus as well. Due to my association with Honda for so long almost all of our family members also have them but it appears my loyalty with them may be over! By the way the warranty extension that American Honda offered me was for the camshafts and rocker arms as well as the spark plugs for 6 years or miles whichever occurs first and a free oil change without oil filter!

If Your Engine Oil Smells Like This, You Have a Serious Problem

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