Lucas Oil10076-PK4 15W-40 Magnum High TBN Truck Oil - 1 Gallon Jug (Pack of 4)

Switched from regular conventional motor oil to this product about 4 oil changes ago. I could tell a significant noise difference on cold starts and pulling hills. I run a c16 cat and it purrs like a dream now! I highly recommend this product for anybody looking for a good oil choice for an older motor. I also blend the heavy duty oil stabilizer in with it. Which I did before with the regular conventional oil.

I use this product in my seven lawn mowers. One Generac has been in service for 12 years using only Lucas oil. No breakdowns in any motors. Best oil on the market.

This is the exact brand you need for any model chevy/gmc that I know of that needs that zinc in it. I have used this brand every 10K oil change, I have 05 2500Hd 6.6 Diesel almost 375K miles on the OD as we speak, no issues. Remember Not all Lucas Brands are the same, the High Zinc content one is the Magnum High TBN - Make sure you check with your shop mechanic for your specific needs.

Have not yet decided if I want to pull away from full synthetic. Money is tight though.

First of all the seller has great customer service. Package was damaged and oil was leaking (about 4 quarts). Needless to say they shipped replacement oil the very next day. Product is great as well. Perfect oil for your pre 07 diesel

Great oil keeps your engine running cool, no more dry starts .

I had been using Delo oil in my 03 Ram 2500, but my diesel mechanic suggested I switch to this Lucas oil. What a difference. The motor is noticeably quieter, especially at start-up and it appears that there is a slight boost in pressure, also. This is a bit more money but the quality and service this product provides far exceeds the little extra cost.

Very good job