help choose the rigt oil for a rebuilt d16a6
07-22-2011, 01:27 PM
#1
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help choose the rigt oil for a rebuilt d16a6
So I did some searching & found out that conventional oil breaks down @ high temps & synthetic doesn't then also that some synthetics don't protect your engine & some add hp. Well I for 1 don't care if oil adds pwr or not, I just want a full synthetic that protects. I always use 10w30 castrol gtx. Any advice to what will protect my d16 & keep it healthy? Its also summer time her in socal its like 91degrees right now & want my ride to perform good. I do drive it hard daily.
07-22-2011, 03:33 PM
#4
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Re: help choose the rigt oil for a rebuilt d16a6
The 15 is for temperature/degrees right? And the 40 I'm guessing is thickness? I forgot how to understand it.
07-22-2011, 03:49 PM
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Re: help choose the rigt oil for a rebuilt d16a6
All the info on oil you will ever need.
http://www.jeepfan.com/tech/motoroil-faq.htm
Get a quality brand and go with manufactures spec for the oil.
5w30 or 10w30 (10w30 for warmer climates)
The viscosity of multi-weight motor oil is specified using two numbers. The first number is the viscosity when the oil is cold. This is followed by the letter W (which stands for winter, not weight), which is followed by the number that indicates the viscosity when the oil is at operating temperature. The higher the number the thicker the oil.
On a rebuilt motor there is no reason to go with the thicker 40 weight. Manufacturer recommends 30 weight. Putting 40 in would create unnecessary drag inside the engine. people sometimes use 40 to 'band-aid' problems. No need on a rebuild that you have.
If you stick with a quality brand, you can switch between synthetic and conventional whenever you want... it won't matter.
Old synthetics had a different chemical makeup and would seal differently so they would leak in old engines.
Today that has improved greatly and you can switch between the two all you want.
That's where there are so many semi-synthetics on the market today.
http://www.jeepfan.com/tech/motoroil-faq.htm
Get a quality brand and go with manufactures spec for the oil.
5w30 or 10w30 (10w30 for warmer climates)
The viscosity of multi-weight motor oil is specified using two numbers. The first number is the viscosity when the oil is cold. This is followed by the letter W (which stands for winter, not weight), which is followed by the number that indicates the viscosity when the oil is at operating temperature. The higher the number the thicker the oil.
On a rebuilt motor there is no reason to go with the thicker 40 weight. Manufacturer recommends 30 weight. Putting 40 in would create unnecessary drag inside the engine. people sometimes use 40 to 'band-aid' problems. No need on a rebuild that you have.
If you stick with a quality brand, you can switch between synthetic and conventional whenever you want... it won't matter.
Old synthetics had a different chemical makeup and would seal differently so they would leak in old engines.
Today that has improved greatly and you can switch between the two all you want.
That's where there are so many semi-synthetics on the market today.
07-22-2011, 04:28 PM
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Re: help choose the rigt oil for a rebuilt d16a6
The big factor in choosing a weight of oil Is the condition of the crankshaft. Did you get it checked or micro polished during the rebuild? If it is worn down badly you could choose thicker oil to extend life and reduce potential oil burning.
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