Orig. owner of 98 quad cab 4x4 V-10 gas truck with 103,000 miles , oil always been changed every 3 -5K miles.
Sudden appearance of fairly loud valve-train clacking upon startup this week. People across parking lot notice sound and look. Oil level is fine and sound goes completely away (sofar) as engine begins to warm up and is gone within 4 minutes.
Live in central Florida and for past 40K miles I have run straight 30 or even some straight 30 -40 mixed oil.
this weekend going to change oil as truck is about 3500 miles on this oil change and will get the correct multigrade oil back in it.
Is there any additive youall would recommend running before I drain that old oil out that may help that lifter?
This truck has had several to many instances in the past 7 years where it sat for 3 weeks to maybe 2 months at a time without being run. Other that that would say it has had excellent care.
Sudden appearance of fairly loud valve-train clacking upon startup this week. People across parking lot notice sound and look. Oil level is fine and sound goes completely away (sofar) as engine begins to warm up and is gone within 4 minutes.
Live in central Florida and for past 40K miles I have run straight 30 or even some straight 30 -40 mixed oil.
this weekend going to change oil as truck is about 3500 miles on this oil change and will get the correct multigrade oil back in it.
Is there any additive youall would recommend running before I drain that old oil out that may help that lifter?
This truck has had several to many instances in the past 7 years where it sat for 3 weeks to maybe 2 months at a time without being run. Other that that would say it has had excellent care.
