Which oil and interval would you choose for each car? I listed the current selections. Temps are 15-100F
1. 1991 Chevy S10 4.3L V6 - 240,000 ML - 9,000 ML Year - 60/40 City/Highway
15W-40 Mobile Delvac 1300 - Every 6 months (4500 ML)
2. 1991 Olds Ciera 3.3L V6 (Baby 3800)- 100,000 ML - 28,000 ML Year - 20/80
15W-40 Mobile Delvac 1300 - Every 3 months (7000 ML)
3. 1995 Buick LeSabre 3800 V6 - 95,000 ML - 9,000 ML Year - 70/30
10W30 Texaco Havoline - Every 6 months (4500 ML)
4. (2) 2001 Chevy Malibu 3.4L V6 - 80,000/85,000 - 20,000 ML Year - 50/50
10W30 Havoline Every 3 months (5000 ML)
5. 2004 Ford Focus 2.0L - 400 ML - 5000 ML Year - 60/40
Motorcraft 5W20 - 300 ML / 700 ML / 1500 ML and then every 6 months (2500 ML).
Gene
1. 1991 Chevy S10 4.3L V6 - 240,000 ML - 9,000 ML Year - 60/40 City/Highway
15W-40 Mobile Delvac 1300 - Every 6 months (4500 ML)
2. 1991 Olds Ciera 3.3L V6 (Baby 3800)- 100,000 ML - 28,000 ML Year - 20/80
15W-40 Mobile Delvac 1300 - Every 3 months (7000 ML)
3. 1995 Buick LeSabre 3800 V6 - 95,000 ML - 9,000 ML Year - 70/30
10W30 Texaco Havoline - Every 6 months (4500 ML)
4. (2) 2001 Chevy Malibu 3.4L V6 - 80,000/85,000 - 20,000 ML Year - 50/50
10W30 Havoline Every 3 months (5000 ML)
5. 2004 Ford Focus 2.0L - 400 ML - 5000 ML Year - 60/40
Motorcraft 5W20 - 300 ML / 700 ML / 1500 ML and then every 6 months (2500 ML).
Gene