1999 Isuzu Amigo brand new oil feel

AMIGO123

MEMBER
1999 ISUZU AMIGO
4 CYL
2WD
MANUAL
223,000 MILES

Greetings: I've been doing my own oil changes on this vehicle since new (@ 9 miles). Normally I only use some inexpensive stuff from the local super market. This weekend however I purchased some top brand oil which claims can go for 5000 miles. But when I checked the oil dipstick when completing the oil change I noticed it felt gritty. To make sure it wasn't contaminated within the engine I checked the unused oil in the 5 qt jug (my engine only uses 4.7 qts) and IT TOO felt gritty. Is this normal? I'm used to it feeling very slippery. Is it additives in the oil? Or should I change it out immediately regardless?
Thanks,

Amigo

5 Replies

LEGITIMATE007

MECHANIC
5,121 POSTS

Did you use synthetic by mistake?

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Wednesday, April 28th, 2010 AT 1:14 PM

AMIGO123

MEMBER
3 POSTS

Nope, it was Mobil 5000, supposedly a regular dino oil. Wouldn't syn. Feel even more slippery and thinner?

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Wednesday, April 28th, 2010 AT 10:22 PM

LEGITIMATE007

MECHANIC
5,121 POSTS

That grit is just detergent. Used in those five thousand mile oils, do not fear

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Wednesday, April 28th, 2010 AT 10:38 PM

AMIGO123

MEMBER
3 POSTS

Thanks legit! That makes sense, cause I've driven the car with it (oil) for about 3 months now and that grittiness seems to be going away (which would be explained by the detergency being reduced since then). Just glad its that and not actual dirt or dust. Sincerely, Amigo

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Wednesday, April 28th, 2010 AT 11:25 PM

LEGITIMATE007