Possible gas in oil, need help

I recently had an oil sample done with 48,500 miles on my 4.0 liter 2011. I'm running Amsoil Signature Series 5w-30 synthetic oil. Have changed my oil at 5,000 miles since I bought it brand new. I do notice a slight rich smell from my exhaust when I start it up in the morning, I do make short trips with it as well as 30 mile trip to work every 3rd day. For shiggles I wanted to see how my engine was performing at 50,000 miles so I did an oil sample. I will post results. It says I have some gas in my oil so I did some research and my Amsoil rep said to check my injectors and fuel rail pressures. Does anyone know what the pressures should be? I average 15-17 mpg every fill up, I have no codes stored and have never thrown a code ever. I do run a CAI, and I have also cleaned my MAF and Throttle Body at 30,000 miles. I have run PI fuel injector cleaner through it 10,000 miles ago. I am concerned with the results and need help.http://ea.

 

You're still in the engine warrantee. Head to the dealer asap

 

What's the engine warranty? I do have the extended warranty too.

 

Only when I'm at work do I idle my truck to warm it up as well as the oil. It only idles for 5-10 min. Tops. I don't know what excessive idling is, but from now on I will sample my oil, could've saved me an engine in the future. I just need to know how to fix it, prevent it.

 

5yrs / 60k miles on powertrain.

 

Well I am past the 5 year mark. Shit!!!!!

 

Yeah, I would not do that. Idling when cold is terribly inefficient, so you're probably getting some fuel in the oil. Give it 45 seconds to warm up, then keep the RPMs low until up to temp.

 

Get a reliable lab to check it (one that does not sell generators) it's unlikely you would have enough fuel in your oil to test positive.

 

Well a list 1 enthnol gas 2 pcv valve.3 crappy oil 4 cold cold out? 5all cars trucks have ( wash down ) look it up.All toyotatrdparts and others run rich at fire up until o2 heat up.i would say normal.But Get Another Responce. No check engine light no leaky injectors.toyotas not toyotatrdparts damn auto correct.hope this helps or get some ideas.

 

This is a truck built in 2011 not some thing from the 70's. Gas evaporates very quickly when it's hot ethanol even quicker the PVC takes care of any vapors. O2 sensors have heaters they are working in very short order and warm up is part of the EPA testing. With in 2-3 miles the engine is up to operating temp if he has enough fuel in the sump to be any issue it would run for @%#^. Stuck chokes and crappy oil are a things of the distant past. Engine oil analysis has it's place usually with engines that are very big and hold a hundred gallons of oil or more some thing you don't want to change unless you have to but for some thing that only goes 5,000 miles between changes it's hardly worth it. There is probably more trash in the sump on it's first oil change that it will ever see again.

 

Well I surely dont use crappy oil. Amsoil Signature Series. Im not sure about the lab, they are an independent lab from Amsoil but recommended from them. I just wanted to see where I was at with 50,000 miles as these trucks are known for running forever, which is why I bought it. I do really appreciate all the responses. I might do another analysis next oil change do to cold weather, idling.

 

Drive more worry less mine is the lowest mileage Tacoma I have ever owned it's the only new one and it's at 70K ever other one had in excess of 280K. I have never used oil that was not on sale and the orange can of doom for a filter and worked on cars and trucks for over 35 years. The last engine I had to deal with before I retired was 2200HP and held 150 gallons of engine oil. once you engine is warm the outside weather is not a factor if you spend a lot of time idling yes I'm sure you will find trace amounts of fuel in the oil but 5K changes will more than compensate. We had an 98 Dodge our PD used to plow with at the jail it spent most of it's life idling on the flight line at a military base it had 16K on it when we got it the PD still has it that was 10 years ago.

 

Well smell your lawn mowers oil .ethanol absorbs water which is in All Engines cast iron aluminum etc.And remember when a cylinder fires oil from the bottom splash up and gas/ air mix from the top.They mix That Is why you change your oil.....it it normal now with gas quality that absorbs more moisture.On E85 that is a lot different high achol fuel most Tacoma are not designed to run on it...10% read your gas cap.ps water mixed with enthnol gas wil increase cylinder pressure Where Does It Go?Blow by wash down in to the oil pan..

 

"Idling to warm your engine": https://www.google.com/#q=idling+to+warm+your+engine

 

How many years have we had ethanol now? This is nothing new any engine made can tolerate 5% water in its fuel mix, water injection was a way to reduce spark knock and is still used in high performance engines it's not a problem. Yes oil changes are a necessity there is a lot more than just oil in your crank case it is a large laundry list. Modern oils suspend byproducts this is how they work it is also why modern engine oils can go so long between change without ill effects. Synthetic oil changes 10,000- 20,000 miles if water was an issue you would be floating in it. Frankly I would not go 10,000 miles without an oil change most people these days don’t even open the hood till it’s time to change oil not a good plan. I don’t recommend Flex fuel in an engine designed for B10 and neither does the manufacture but it is not about the moisture content. When was the last time you had to replace a lawn mower engine? Generally the wheels fall of before the engine goes south and that’s not something that gets a lot of attention much less changing the oil once in a while.

 

Absolutely, it is far less of an issue with a modern engine but if nothing else you are getting exactly zero miles to the gallon. The only benefit is to the lazy drivers comfort.

 

amway signature series oil

LOL

 

Check your New lawn wow ears weed walkers chainsaw Snow blowers Harlys.etc......No more than 10% Enthanol.the fuel system and ignition don't have the Ranges of enthnol compancated for.No warranty if you run in a lot of combustion engines.....What is flex fuel compatible engines all about? The ability to compensate for a wide ass range on air fuel demands.A lot of toyotas older fords Chevy bow Harlys etc... In the computers that why new flex fuel can run what ever..If you want look up fuel demands and timing you need to run flex fuel in a older non flex fuel viehcle...

 

flex fuel has very little to do with ignition and timing,

it has to do with fuel system components, gaskets, plastics, rubber o-rings...etc that do not rot
when exposed to high concentrations of alcohol

that is all flex-fuel means really. ordinary engine ecu's can compensate for the high octane/low energy of alcohol
but the plastics and gaskets of most 'ordinary' engines and fuels systems will be destroyed if you run >10%