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what oil did you use? generally 5w30 is standard, but you can use other oil weights depending on environment, i.e. 10w30. the numbers correspond to the viscosity of the oil. heavier weight oil such as 10w30 is better in the hot summer months, where 5w30 should be used in cold winter months
5W-30 is a lighter oil, and although is easier for the engine to push through the oil passages (increasing efficiency). If you were running 10W30 or 10W40, there should not be a reason to change. Also...an interesting phenomena noted when drivers switch to a synthetic, many have stated an increase in valve noise. The oil companies denounce their oil causes increased noise, however the fact that there are many before you that have run into a similar issue cannot be ignored. Since synthetic is lighter and designed to flow/stick like conventional, going to a lighter weight in your case was an oops. Go back to a 10W30 and the noise should go back down a little. If you put in a weight of oil that is significantly higher than the design specifications, your fuel economy will go down (not much for each trip, but collectively it will add up) since the engine is working harder to move the oil.
The manufacturer recommends 5W30 conventional. I like Castrol myself. for a 1996 Camry. Newer Camry's require a 5W20 synthetic but not yours. Looks like 4 quarts is the amount.
If you have any comments please feel free to leave them here.
In th 80's manufacturers changed from using 10W30 to 5W30 as a recommendation for engine oil. Your truck would likely have enough mileage on it by now that you should consider moving up to a 10W30 or 10W40. Mileage in the area of 250,000 or more could probably handle 20W50 in the summer without problems, but at least 15W40.
If the truck is in good shape, body and mechanical, and not using a lot of oil then a shift to synthetic may prove to be a wise idea. It does cost more but needs to be changed less often and will extend the life of the engine. At least 10W30 would be a good place to start with synthetic.
A good investment would be to purchase an after market oil pressure gauge so you can see what your engine is doing. They are easily installed. Pressure should be in the 30PSI range and this would give you a better idea if the new oil is doing it's job. Hope this helps.
I personally prefer MOBIL1 brand ..You can decide as per your wish..
SOME ADDITIONAL INFORMATION:
There are many grades of oil weights whichever you want to call it. Heres how it works
Oils main job is to keep the engine clean, lubed, running cool ect. The
grade usually 5w20 5w30 or 10w30 ect. Theres many of them as well which
can be consfusing at times. Oil weight is measure by cold and hot . For ex: 5w30 The 5 weight is when the oil is cold and 30 is the weight when its hot. The reason being is the the less the weight when its cold the easier the oil
can get to the top of the engine and lube it to prevent cold engine
damage. Once its heated up its a 30 weight and is thick enough to
protect your engine.( most engine damage is caused when the engine is
cold )You should use the proper grade that your engine calls for. Being
toyota its probably 5 or 10w 30.If you live up north i would recommenda 5w30
weight.You can easily find out which grade you should use by your
owners manual or under the hood on the oil cap. However there are synthetic oils as well. Synthetic oils have man made additives to help the engine run cooler, the oil
is naturally slicker to help it move around easier and boost
performance of the engine resulting in better mpgas well. They have
alot of additives to prevent engine wear ect. One good thing about a
synthetic oil is you can go longer on the oil change. Instead of the normal 3,000 miles oil
change you can go 4 or 5 k. Theres also synthetic blends. Which are
good too but youll have to read about it more to decide for yourself
what you think you need.
Synthetic oils are better for someone who travels alot or puts extreme
conditions on an engine such as idling for long periods of time stop
and go traffic its really good for anything to be honest.. I would recommend
using synthetic if you decide to keep the car for a while. It has many
benefits.
Should be using 10w30 or 10w40. You probably have a lifter knocking. Instead of using 5 quarts of oil replace one of the quarts with an oil additive. I use a quart of Lucas Oil in my vehicles every oil change. The stuff works wonders!
The weight of engine oil is dependant on the climate you are in. When you go to the parts store or where ever you get your oil, read the back of the oil container and it will tell you the temperature variations for that grade of oil. For colder climates you will need a thinner oil or lighter weight, and for hotter climates you will need a thicker oil or heavier weight. The higher the number ie... 30, 40, 50, the thicker the oil, the lower the number the thinner it is.
Some manufacturers put the grade on the fill cap or the dipstick.
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