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    Default Engine Oil for Old Cars

    I have 92 accord with JDM 2000 Accord Engine. Engine is in good nick thanks to Allah. I was wondering what oil is best for it. Searching thread was helpful but they were for new cars xli/gli etc. I have questions

    1. Use Mineral Oil if yes which company
    2. Use Synthetic Oil and which grade
    3. Is it better to have shorter drainage periods or longer periods with synthetic oils.......
    4. Please suggest best Oil Company.... heard shell ultra is best according to @Xulfiqar https://www.pakwheels.com/forums/oil...-2#post4227287
    Personally i am biased towards Synthetic Oil. Someone said in Pakistan there is alot of dusts so its better you drain your oil frequently. Dont know how legitimate is this.

    93 Accord CB7 (Sold) / 2005 CL7

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    Synthetics are not meant for engines having enough milage already. Mineral oil when used, will make a fine seal compensating the wear and tear of the pistons. The additional detergents in synthetic oil will dissolve the mineral seals and your engine will be smoking in no time.

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    Go for Castrol magnetec 10W40

    Sent from my GT-I9105 using PW Forums mobile app

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    Quote Originally Posted by afnan.bashir View Post
    I have 92 accord with JDM 2000 Accord Engine. Engine is in good nick thanks to Allah. I was wondering what oil is best for it. Searching thread was helpful but they were for new cars xli/gli etc. I have questions

    1. Use Mineral Oil if yes which company
    2. Use Synthetic Oil and which grade
    3. Is it better to have shorter drainage periods or longer periods with synthetic oils.......
    4. Please suggest best Oil Company.... heard shell ultra is best according to @Xulfiqar https://www.pakwheels.com/forums/oil...-2#post4227287
    Personally i am biased towards Synthetic Oil. Someone said in Pakistan there is alot of dusts so its better you drain your oil frequently. Dont know how legitimate is this.
    which oil you are feeding it presently & change interval?
    No Guts, No Glory.

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    @GoodMan7 its Havoline with Red sticker and i drain it near 5k
    93 Accord CB7 (Sold) / 2005 CL7

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    Quote Originally Posted by afnan.bashir View Post
    @GoodMan7 its Havoline with Red sticker and i drain it near 5k
    Havoline red sticker is 10/30 and mineral SM grade oil.
    Now it depends that how much you'd like to spend on engine oil.
    I think accord 2000 model JDM engine is 2200cc and takes 4.5L or engine oil. right?

    Now, I'll suggest to go
    LM 5/50 Molygen SJ Grade. SCI 5K first time, but 8~10K next time.
    LM 5/40 Hi-Tech SM Grade. SCI 5K first time, but 8~10K next time.
    LM 10/40 MOS2. SCI 5K first time, but 7~8K next time.

    Its true that we have too much dust on the roads, but it has very less affect on quality of engine oil. Main affects on engine oil may comes via Bad Fuel quality, Driving style, etc.

    Many people assume that using synthetic oils dissolves the seals that cause leakage. But its chances are less than 5% and causes may be many others too.
    (But am not sure about PDM seals. These are very not as good as these should be and even cause leakage on mineral oils).


    If wanna fuel economy, then may try 5/30 oil which is good for year round use. Or Zic A+ which is 5/20.
    No Guts, No Glory.

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    Quote Originally Posted by GoodMan7 View Post
    Havoline red sticker is 10/30 and mineral SM grade oil.
    Now it depends that how much you'd like to spend on engine oil.
    I think accord 2000 model JDM engine is 2200cc and takes 4.5L or engine oil. right?

    Now, I'll suggest to go
    LM 5/50 Molygen SJ Grade. SCI 5K first time, but 8~10K next time.
    LM 5/40 Hi-Tech SM Grade. SCI 5K first time, but 8~10K next time.
    LM 10/40 MOS2. SCI 5K first time, but 7~8K next time.

    Its true that we have too much dust on the roads, but it has very less affect on quality of engine oil. Main affects on engine oil may comes via Bad Fuel quality, Driving style, etc.

    Many people assume that using synthetic oils dissolves the seals that cause leakage. But its chances are less than 5% and causes may be many others too.
    (But am not sure about PDM seals. These are very not as good as these should be and even cause leakage on mineral oils).


    If wanna fuel economy, then may try 5/30 oil which is good for year round use. Or Zic A+ which is 5/20.
    Never herd of above oils except for zic.

    My car is 1.8 VTEC. 4 Liters.

    If synthetic is worth it then i can spend money......... and it its going to ruin engine then definitely not @Xulfiqar does synthetic engine oil destroys seals?
    93 Accord CB7 (Sold) / 2005 CL7

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    synthetic oil does not destroy seals, it simply is very fluid and will seep everywhere. The leaks occur only if that certain oil seal was bad and the engine was so badly sludged up that the sludge was preventing leaks.

    I have not had any leakage after changing to synthetic.

    For your old school engine, API SJ rated oil is best (valve train has tappet rockers) you need a lot of zddp in the oil - otherwise you will damage them. Havoline motor oil is good for your use, keep on using it for 5k change interval.

    I drove an old Honda Accord for more than 400,000 kms in Pakistan on Havoline motor oil - no problems. it still had 178 psi compression on all cylinders and 20~25 psi oil pressure at hot engine.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by Xulfiqar View Post
    synthetic oil does not destroy seals, it simply is very fluid and will seep everywhere. The leaks occur only if that certain oil seal was bad and the engine was so badly sludged up that the sludge was preventing leaks.

    I have not had any leakage after changing to synthetic.

    For your old school engine, API SJ rated oil is best (valve train has tappet rockers) you need a lot of zddp in the oil - otherwise you will damage them. Havoline motor oil is good for your use, keep on using it for 5k change interval.

    I drove an old Honda Accord for more than 400,000 kms in Pakistan on Havoline motor oil - no problems. it still had 178 psi compression on all cylinders and 20~25 psi oil pressure at hot engine.
    i think havoline Motor oil is SG grade and not SJ. However just make sure before using.
    No Guts, No Glory.

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    Quote Originally Posted by GoodMan7 View Post
    i think havoline Motor oil is SG grade and not SJ. However just make sure before using.
    so who is saying havoline motor oil is SJ?

    I wrote that I drove an old Honda accord for 400,000 kms in Karachi Pakistan - on my own hands rebuilt engine, that engine specifies API SE or SF oil, its sump is 3.5 litres only and oil change interval of 5000 kms is best. In very early times you could buy caltex cxt motor oil and it was API SF but later got discontinued hence Havoline motor oil was used (which was the new cxt)
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by Xulfiqar View Post
    so who is saying havoline motor oil is SJ?

    I wrote that I drove an old Honda accord for 400,000 kms in Karachi Pakistan - on my own hands rebuilt engine, that engine specifies API SE or SF oil, its sump is 3.5 litres only and oil change interval of 5000 kms is best. In very early times you could buy caltex cxt motor oil and it was API SF but later got discontinued hence Havoline motor oil was used (which was the new cxt)
    For such old cars (as like yours old model Accord), if we pour the latest grade engine oils like SN/ILSAC GF-5/A5/B5, etc. then will such cars run well or not?
    Just felt to ask this question to re-assure the new grade oils fully meets older grades too?
    No Guts, No Glory.

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    What if your car engine rings are weak or need to be changed, can any engine oil repair this slight ring damage?

    Sent from my SM-T211 using PW Forums mobile app

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    Quote Originally Posted by abart View Post
    What if your car engine rings are weak or need to be changed, can any engine oil repair this slight ring damage?

    Sent from my SM-T211 using PW Forums mobile app
    It can not b rectify by any oil. But suggestion is to use 20w50 grade oil. It can develop thick film between cylinder and rings.

    Sent from my GT-I9505 using PW Forums mobile app

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    Quote Originally Posted by BilalShell View Post
    It can not b rectify by any oil. But suggestion is to use 20w50 grade oil. It can develop thick film between cylinder and rings.

    Sent from my GT-I9505 using PW Forums mobile app
    Ok , thx.

    When to change 20 50 oil in weak ring engine car?

    Sent from my SM-T211 using PW Forums mobile app

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    Quote Originally Posted by GoodMan7 View Post
    For such old cars (as like yours old model Accord), if we pour the latest grade engine oils like SN/ILSAC GF-5/A5/B5, etc. then will such cars run well or not?
    Just felt to ask this question to re-assure the new grade oils fully meets older grades too?

    this problem arises as modern oils lack this

    Zinc dithiophosphate - Wikipedia, the free encyclopedia

    engines with flat tappet rockers (not lifters) require this oil. The engine in question has that. So explain why should i spend more money on something that will hurt it.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    @Xulfiqar instead of rocker arm what was introduced in later hondas? i mean they have CAM in them what lifts the tappet then ? i.e in R18

    Engine Oil for Old Cars -1355631

    I guess there is rocker arm too....
    93 Accord CB7 (Sold) / 2005 CL7

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    Quote Originally Posted by asad1 View Post
    Go for Castrol magnetec 10W40

    Sent from my GT-I9105 using PW Forums mobile app
    +1

    Imported from UK

    Rs. 2,350/ 4L.
    All life is an experiment. The more experiments you make the better.

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    Quote Originally Posted by afnan.bashir View Post
    @Xulfiqar instead of rocker arm what was introduced in later hondas? i mean they have CAM in them what lifts the tappet then ? i.e in R18

    Engine Oil for Old Cars -1355631

    I guess there is rocker arm too....

    In this engine the rockers have rollers on them, they are not the same as the flat tappet system the old engines had. These roller rocker arm system does not require high zddp oil.

    This same system is in my mercedes 3.2 V6 engine also, The older straight six 3.0 SOHC had the flat tappet rocker.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    Quote Originally Posted by GoodMan7 View Post
    Havoline red sticker is 10/30 and mineral SM grade oil.
    Now it depends that how much you'd like to spend on engine oil.
    I think accord 2000 model JDM engine is 2200cc and takes 4.5L or engine oil. right?

    Now, I'll suggest to go
    LM 5/50 Molygen SJ Grade. SCI 5K first time, but 8~10K next time.
    LM 5/40 Hi-Tech SM Grade. SCI 5K first time, but 8~10K next time.
    LM 10/40 MOS2. SCI 5K first time, but 7~8K next time.

    Its true that we have too much dust on the roads, but it has very less affect on quality of engine oil. Main affects on engine oil may comes via Bad Fuel quality, Driving style, etc.

    Many people assume that using synthetic oils dissolves the seals that cause leakage. But its chances are less than 5% and causes may be many others too.
    (But am not sure about PDM seals. These are very not as good as these should be and even cause leakage on mineral oils).


    If wanna fuel economy, then may try 5/30 oil which is good for year round use. Or Zic A+ which is 5/20.
    which oil do you recommend for toyota 5k engine? engine is in good condition. it uses solid lifters.

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    the toyota 5K OHV engine had hydraulic lifters, the 1,2,3,4 and 7K engines had the solid ones. Those engines take caltex delo or havoline motor oil without problem.

    Make sure the engine gets nice n hot (install T stat) and that the PCV valve and breather are in good shape. Its a very good and robust engine.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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